Field notes, v1538

Quast, Jay C.
1948
Museum of Vertebrate Zoology, University of California, Berkeley
Original Source
Source Material:
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org

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UNIVERSITY OF CALIFORNIA MUSEUM OF VERTEBRATE ZOOLOGY
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Digitized by the Internet Archive in 2017 with funding from CLIR https://archive.org/details/fieldnotesv153800quas
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Quast, J.C. April 17 - July 17, 1948 Baja California catalogue nos. 1-474 Journal Species Accounts Birds Mammals Reptiles
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Catalogue
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Quart 1948 Catalog 1 April 7 Elido Cocopah mts, 21 mi SSE Mexicali, Baja California 1 ♀ No Emb. Dipodomys merriami, 220-130-34-13-10, 25.2g 2 ♂ Dipodomys merriami, 256-161-39-15-11, 39.3g April 8 Punta San Felipe, 50 ± ft, Baja California 3 ♀ No Emb. Peromyscus crinitus, 184-105-19-19-15, 14.0g 4 ♂ " " ", 170-97-20-20-16, 12.5 g 5 ♂ " " ", 172-106-20-20-18, 13.5 g #7♂ Perognathus spinatus, 176-104-20-8-6, 12.1g #6 ♂ " " ", 186-66-21-8-6, 12.7g April 9 Punta San Felipe, 50 ± ft, Baja California 8 ♀ No Emb. Neotoma lepida 297-142-31-32-30 100.0g 9 ♀ " " " 300-149-29-34-29 115.2 g 10 ♂ Peromyscus crinitus 177-102-19-19-18 14.0g 11 ♂ " " " 175-102-21-19-17 12.8g 12 ♀ No Emb. Perognathus formosua penicillatus 194-114-26-9-6 15.1 g 13 ♀ " " " 155-98-25-9-7 14.8g 14 ♂ " " " 186-110-25-10-7 16.6 g 15 ♀ No Emb Peromyscus crinitus 157-90-18-19-17 10.2g 16 ♀ " " " 174-104-20-20-17 11.4 g 17 ♂ " " " 169-98-19-20-17 11.4g 18 ♀ No Emb. Perognathus formosue 199-112-25-10-6 16.2g 19 ♀ " " " 200-113-25-9-7 17.5 g April 10 Punta San Felipe, 50 ± ft, Baja California 20 ♀ No Emb. Perognathus formosue 192-112-25-10-7 19.1 g 21 ♀ " " " 189-114-25-10-7 18.0 g 22 ♀ " " ", 198-120-25-9-7 17.8g 23 ♂ " " ", 193-112-26-10-8 20.8g 24 ♂ " ", 166-95-22-9-6 12.0g
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Quast 1948 Catalog 2. April 10 Punta San Felipe, 50+ ft, Baja California 25 ♀ No embryos Perognathus spinatus 164-93-21-8-6 10.7 g 26 ♀ " " " 138+-70+-21-8-5 9.5g 27 ♀ " " " 164-87-20-8-5 11.5g 28 ♀ " " " 181-112-22-8-6 12.8g 29 ♀ " " " 172-97-22-8-5 11.8g 30 ♀ " " " 105+-39+-22-8-6 10.6g 31 ♂ " " " 178-107-22-8-6 11.8g 32 ♂ " " " 147+-73+-22-7-4 10.9 g 33 ♂ " " " 170-99-22-9-5 10.9g 34 ♂ " " " 150+-80+-22-8-5 11.7 g 35 ♀ No emb. Pipistrellus hesperus 62-27-6-8-9 2.3g 36 ♂ Pipistrellus hesperus 67-26-5-7-9 2.6g 37 ♀ No emb. Peromyscus erimitus 148+-77+-21-19-15 10.9g 38 ♂ " " " 162-95-19-20-18 9.3g April 11 Punta San Felipe, 50+ ft, Baja California 39 Callisaurus draconoides 11.4 g 40 " " " 5.0 g 41 " " " 9.7 g 42 Dipsosaurus dorsalis 10.9 g 43 " " " 16.7 g April 13 9 mi W. Punta San Felipe, 200+ ft, Baja California 44 ♂ Perognathus spinatus 182-108-22-8-6 11.0 g 45 ♂ Perognathus formosus 200-116-25-9-7 17.2 g 46 ♀ Peromyscus erimitus 165-98-19-19-18 10.5g April 14 48 Cremidogaluna tessellatus 15.1 g 48♀ El Mayor, 30+ ft, Rio Hardy, Baja California Peromyscus eremitus 194-106-21-19-18 25.4g 49♀ Perognathus spinatus 185-112-21-8-5 10.6 g
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Quast 1948 Catalog 3 April 14 El Mayor, 30ft, Rio Hardy, Baja California 50♀ Peromyscus crinitus 173-101-19-19-16 11.9g April 16 Cerro de Centinela 300 ft 13 mi WSW Mexicali Baja California, 51♀ Peromyscus crinitus 174-109-19-19-16 11.6g 52♂ " " 159-95-18-17-16 10.1g 53♂ " " 155-91-18-19-16 10.4g 54#♂ Perognathus spinatus 161-101-19-8-5 7.7g 55♂ Perognathus baileyi 193-106-27-10-7 21.8g 56♂ " " 176-103-25-9-7 14.0g 57♂ " " 164+80+25-9-7 16.6g 58♀ Perognathus spinatus 109+-41+-21-8-6 10.0g 59♀ Peromyscus crinitus 168-100-19-19-17 10.8g April 17 Cerro Prieto 30ft 20 mi SSE Mexicali Baja Calif. 60 Dipsoosaurus dorsalis 75.6g 61 " " 66.7g 62 " " 55.5g 63 " " 10.4g+ 64 Cnemidophorus tesselatus 13.5g April 18 Cerro Prieto 30ft 20 mi SSE Mexicali Baja Calif. 65♀ Peromyscus eremicus 174-90-19-19-17 23.2g 66♀ " " 182-92-21-20-17 29.1g 67♀ Perognathus spinatus 142-80-19---- 10.1g 68♂ " " 176-105-21-9-6 13.4g 69♂ Perognathus penicillatus 186-109-25-10-7 23.0g 70♀ Perognathus spinatus 168-101-21-8-5 9.6g 71♀ Perognathus penicillatus 182-96-24-9-6 19.0g 72♀ " " 170-99-23-9-6 17.6g
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Quast 1948 Catalog April 18 Cerro Prieto 30ft 20 mi SSE Mexicali Baja Calif 73 ♀ Perognathus penicillatus 196-108-25-9-6 21.0g 74 ♂ Perognathus bajlei 195+106+25-11-7 22.7g 75 ♂ Perognathus penicillatus 167-95-24-8-6 14.7 76 ♂ Perognathus spinatus 157-93-21-8-5 9.0g 77 ♀ No Emb. Pipistrellus hesperus 73-28-6-11-10 3.3g 78 ♀ No Emb. Tadarida mexicana 91-32-11-15 9.4g April 20 Alaska 4400 ft Baja California 79 Sceloporus orcutii 35.9g 80 Sceloporus 17.7g April 21 Agua Hedionda 32°30' N 116°16' W Baja California 81 ♀ Dipodomys agilis 253-156-43-15-12 52.4g 82 ♀ Peromyscus californicus 231-134-28-26-24 35.9g 83 ♂ " " 211-128-25-24-22 38.0g 84 ♀ Peromyscus maniculatus 168-78-20-17-15 23.0g 85 ♂ " " 162-75-20-19-17 25.7g 86 ♂ " " 161-82-21-18-16 19.4g April 24 San Fernando Mission 1500 ft Baja California 87 ♂ Peromyscus maniculatus 147-65-20-17-15 17.5g 88 ♂ Reithrodontomy megalotis 134-79-18-15-13 9.9g 89 ♀♂ " " 129-73-17-15-12 8.0g 90 ♀♂ " " 125-69-17-15-12 6.9g April 25 12½ mi by road south of El Marmol 2200 ft Baja California 91 ♀ Emb. 18 mm Dipodomys merriami 238-147-35-15-10 37.0g 92 ♂ " " 238-144-35-15-11 40.6g 93 ♀ No Emb. Dipodomys agilis 260-154-39-16-12 50.0g 94 ♀ No Emb. Perognathus fallax 185-109-24-9-6 14.8g
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Quart 1948 Catalog 5 April 26 Min La Fortuna 2350 ft 2 mi N Laguna de Caracoles Baja Calif. 95 ♂ Antrozous 112-43-12-29-25 14.9g Wing spread 380 mm. 96 ♀ 2 Emb. 5 mm " 109-44-12-30-26 16.5g Wing spread 350 mm. 97 ♂ Chaeromycterus mexicana 78-10-12-16-11 19.9g Wing spread 335mm. 98 Uta stansburiana 3.6g April 28 30 mi SE Mesquital 600 ft Baja Californi 99 ♂ Sylvilagus bachmani 284-20-65-68-80 418.0g 100 ♀ No Emb. Lepus californicus 515 72-116-128-146 4½ lb 101 ♂ Dipodomys merriami 255-154-38-14-10 32.1g 102 ♂ " " 248-153-37-14-11 33.4g April 30 Mission San Ignacio 500 ft Baja Californi 103 ♂ Tadarida mexicana 90-35-11-18-12-296 fx wt 8.5g 104 ♂ " " 92-35-10-17-13-300 " 8.9g 105 ♂ " " 92-34-10-18-14-302 " 10.1g 106 ♂ " " 91-34-10-18-14-312 " 10.8g 107 ♀ No Embryos " " 87-32-10-17-13-295 " 9.3g 108 ♀ " " 87-32-10-19-14-298 " 9.5g 109 ♀ " " 89-34-11-18-13-310 " 9.8g May 2 Mulege 25 ft Baja Californi 110 ♀ No Emb. Tadarida americana 91-33-10-19-14-298 wt 9.7g 111 ♀ 1 Emb 3 mm " " 92-32-10-17-12-291 " 9.9g 112 ♀ 1 Emb 6 mm " " 90-33-10-18-13-304 " 10.0g 113 ♀ 1 Emb. 3 mm " " 90-33-11-18-13-292 " 10.1g 114 ♀ 1 Emb 4 mm " " 88-34-9-18-14-303 " 10.1g 115 ♀ 1 Emb. 5 mm " " 89-34-10-18-14-305 " 11.0g
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Quas\n1948 Catalog 6 May 2 Mulege 25+ ft Baja California 116 ♀ No Embryos Myotis yumanensis 74-32-8-14-10-216 wt 3.9 117 ♀ 1 Emb. 2mm “ “ 69-31-8-14-12-221 “ 3.4 118 ♀ No Embryos “ “ 74-30-8-15-11-214 “ 3.5 119 ♀ “ “ “ “ 73-33-9-14-11-219 “ 3.5 120 ♀ “ “ “ “ 71-32-8-13-11-220 “ 3.8 121 ♀ /Emb 4 mm “ “ 73-32-9-15-11-230 “ 3.9 122 ♀ No Emb. “ “ 69-33-9-14-11-216 “ 4.3 Killed Skull only and prepared 123 ♀ No Embryos “ “ 72-33-8-13-10- “ 3.3 May 124 ♀ “ “ “ “ 77-34-10-13-11-225 “ 3.6 3 125 ♀ “ “ “ “ 72-34-10-14-12-220 “ 3.7 126 ♀ “ “ “ “ 75-35-10-13-12-222 “ 3.7 May 4 The following specimen caught by Dr. Benson. 127 ♂ Testes 27mm Dipodomys merriami 244-148-40-15-10 wt 46.6g Put up 128 ♂ Macrotes californicus 87-33-13-33-27-319 wt 10.0g and 129 ♂ “ “ 88-32-14-32-26-322 “ 10.2 weighed 130 ♂ “ “ 88-33-13-30-28- “ 11.8 May 5 131 ♂ Mormoops megalophylla 84-24-11-15-6- “ 12.7 May 5 Bahía Concepcion 13 mi SE Mulege Baja California 132 ♂ Testes 14mm Perognathus spinatus 176-104-21-9-6 wt 12.2g 133 ♂ Testes 7 mm “ “ 189-111-22-9-6 “ 12.4 134 ♀ No Embryos “ “ 189-114-22-8-6 “ 12.0 135 ♀ “ “ “ “ 179-109-21-9-5 “ 11.0 136 ♀ 2Emb. Peromyscus eremicus 181-96-19-19-17 “ 14.4 4 mm “ 137 ♀ 2 Emb. 11mm “ “ 184-100-20-19-17 “ 15.3 138 Rattlesnake wt 44.4g 139 Skull of rodent contained in above (#138) ♂ Perognathus spinatus
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Quast 1948 Catalog 7 May 6 Bahia Concepcion 13 mi S.E. Mulege Baja California 140 ♂ Testes 5mm Perognathus arenarius 136-81-19-8-5 wt 8.3g 141 ♂ Testes 9mm " " 130-64-20-8-6 " 10.0 142 ♂ Testes 9mm " " 139-78-22-8-6 " 10.1 143 ♂ Testes 9mm " " 152-90-22-8-5 " 10.2 144 ♂ Testes 9mm " " 156-91-21-8-5 " 10.3 1465 ♂ Testes 10mm " " 156-90-22-8-6 " 10.9 1476 ♀ / Emb. 11mm " " 150-85-20-8-5 " 10.0 1487 ♀ No Embryos Perognathus baylei 191-98-26-9-7 " 23.7 1498 ♀ " " Peromyscus eremicus 170-96-18-18-16 " 16.4g May 7 Same location. 149 ♀ No Embs Dipodomys merriami 256-162-39-15-1 wt 35.2g 150 ♂ Testes 15mm Perognathus baylei 181-93-25-10-7 " 23.0 151 ♂ Testes Perognathus spinatus 176-106-20-8-5 " 11.5 152 ♂ Testes 13mm " " 177-99-22-9-6 " 14.6 153 ♀ No Embs. " " 169-100-21-9-6 " 10.3 154 ♂ Testes 9mm. Perognathus arenarius 161-97-22-8-6 " 11.8 155 ♀ No Embs, " " 157-93-22-8-6 " 8.5 156 ♀ 2 Emb. 6mm " " 143-83-21-8-6 " 9.3 May 8 Rancho Cedejo S.W end Bahia Concepcion Baja Calif. 157 ♂ Testes 15mm Perognathus spinatus 164-95-20-9-6 wt 12.2g 158 ♂ Testes 11mm " " 178-104-21-10-6 " 13.6g May 9 San Jose de Comondú 200 ft Baja California 159 Cnemidophorus tesselatus 34.4g 160 Streptoxaura 33.2 g May 10 Same Location 161 ♂ Eptesicus fuscus 94-42-10-15-12 - wt 6.1g 162 ♂ " " 92-34-8-13-11 - " 9.5g
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Quest 1948 Catalog 8 May 10 San Jose de Comondu 700 ft Baja California 163 ♂ Papistrellus lespurus 68-25-5-12-8- w.t. 2.6g 164 ♀ No Embs Peromyscus eremicus 182-114-21-17-14 " 15.8 165 ♀ " " " 189-110-21-20-17 " 16.2 166 ♀ " " " " 192-111-21-19-18 " 17.3 167 ♀ " " " 200-116-21-20-16 " 18.1 168 Phylloctylus xactus 169 Uta — 2.3g May 11 Pogo Grande 25+ ft 25°46'N 112°02'W Baja California millimillimillimillimillimillimillimillimilimilimilimilimilimilimi 170 Bufo punctatus wt 7.7g 171 ♂ Eptesicus fusceus 87-36-8-12-11-266" " 5.4g May 13 Santa Ana Arroyo de Los Viejos, 25+ ft 24°03'N 110°58'W, Baja California millimillimilimi,milli,milli,milli,milli,milli,milli,milli,milli,milli,milimi 172 ♂ Myotis californicus 71-36-7-13-11- w.t. 3.0g May 14 4 miles north of La Paz, Sea Level, Baja California millimillimillimillimillimillimilimilimi,milli,milli,milli,milli,milimi 173 Crepidophorus hyperydus 174 Uta stanisburiana wt. 2.0g — 175 ♀ No Embs Citellus leucurus 201-69-36-12-6 wt 67.5g 176 Uta stanisburiana May 15 Same Location. 177 ♂ Testes 22mm Neotoma lepida 291-141-34-32-30 w.t. 137.4g 178 ♀ 2 Embs 70mm Peromyscus eremicus 166-99-18-17-15 " 11.7g 179 ♂ Testes 6mm " " 154+-81+-19-19-16 " 13.1g 180 ♂ Testes 16mm " " 176-99-19-19-15 " 15.0g 181 ♂ Testes 15mm " " 181-/00-19-20-18 " 18.6g 182 ♂ Testes 8mm Perognathus spinatus 179-100-20-9-6 " 140.8g May 16 Same Location. 183 ♀ Peromyscus eremicus 172-96-19-18-16 wt 14.8g 184 ♂ Perognathus spinatus 181-102-23-10-2 " 15.6g
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Quast 1948 Catalog 7 May 17 Triunfo, 1700 ft Baja California 185 ♂ Pipistrellus hesperus 66-27-6-12-10-188 wt. 2.4g 186 ♀ 2 Emb. 8mm "" 74-30-6-11-9-206 " 3.7 187 ♂ Perognathus spinatus 191-107-23-10-7 wt. 19.4g 188 ♂ Testes 8mm "" 173♂-85♂-24-10-7 ⚬ 19.5g 189 ♂ "" "" 190-103-24-9-6 " 19.6 190 ♂ Testes 10mm "" "" 204-117-25-10-7 " 20.7 191 ♂ "" "" 206-115-24-11-7 " 21.1 192 ♂ "" "" 201-112-25-11-8 " 23.2 193 ♀ No Embos. "" "" 168♂-82♂-25-11-7 " 16.2 194 ♂ Testes 17mm Perognathus baylei 186♂-95♂-24-10-7 " 27.3 195 ♀ 1 Emb. 20mm "" "" 153♂-64♂-25-10-7 " 23.6 196 Bufo punctatus May 18 Same Location 197 ♀ 2 Emb. 7mm Pipistrellus hesperus 71-29-5-12-9-200 ev wt. 3.4g 198 ♀ 2 Emb. 8mm "" "" 66-28-5-12-9-— " 3.5g 199 ♀ No Emb. Eptesicus fuscus 99-42-9-16-12-294 ⚬ 9.2g 200 ♂ Testes 15mm Perognathus spinatus 195-115-22-10-7 wt. 17.8g 201 ♂ Testes 8mm "" "" 201-111-25-10-7 wt. 22.0g 202 ♀ No Embos. "" "" 113♂-36♂-24-9-6 " 15.8g 203 ♀ " " "" "" 138♂-59♂-24-10-7 " 17.0 204 ♀ " " "" "" 174♂-92♂-23-10-6 " 18.4 205 ♀ Lactating No Embos. "" "" 185-102-23-10-8 " 19.6 206 ♂ Peromyscus eremicus 206-125-21-19-16 " 16.4 207 ♀ No Emb. "" "" 190-105-20-18-16 " 18.7 208 ♂ Testes 12mm Perognathus spinatus 180-109-24-10-6 " 18.4 May 19 Same Location 209 ♂ Eptesicus fuscus 94-43-9-15-10-— wt. 8.3g
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Quest 1948 Catalog 10 May 19 Triunfo 1700 ft Baja California. 210 ♀ Eptesicusfuscus 105-46-10-16-11- wT. 11.7g 211 ♀ No skull " " 104-42-9-14-11- " 10.0g 212 Poorwill wt. 34.1g 213 ♀ Bufo punctatus contained eggs. 214 ♀ Roadrunner Stomach contained large Cnemidophorus WT. 272.2g 215 ♀ No Embs. Citellus leucurus 221-74-38-12-5 wt. 94.3g 216 ♀ 4 Embs " " 21mm 204-55-38-12-5 WT. 120.9g May 20 Same Location. 217 ♀ No Embs Mystis velifer 91-42-9-14-13- wt. 6.4g 218 ♀ " " Eptesicusfuscus 91-35-9-16-14-295 WT. 8.7 219 ♀ " " " " 104-42-9-15-11- " 11.4 220 ♂ Testes 9mm Perognathus spinatus 184-106-23-10- wT. 16.6g 221 ♂ Testes 9mm " " 184-100-23-11-7 " 18.1 222 ♂ Testes 9mm " " 166+-85+-24-10-6 " 21.8 223 ♀ No Embs " " 153+-75+-24-10-6 " 17.4 224 ♀ No Embs Peromyscus eremicus 180-109-21-19-17 " 17.0 May 20 1 mi E. of San Antonio, Baja California 225 ♀ Leptonycterus (?) 72- WT. 20.0g 226 ♀ " 69-0-14-16-11-380 " 20.0g 227 ♀ " 72-0-14-16-11-380 " 20.4g 228 ♀ " 66-0-15-16-11-340 " 22.7g 229 ♀ " 70-0-15-17-12-385 " 22.7g 230 ♂ Microtus californicus 81-32-12-26-24-310 " 9.5g 231 ♂ " " 89-35-12-32-26- " 10.9g 232 ♂ " " 86-34-10-30-25-320 " 11.6g 233 ♂ " " 91-36-11-31-26-325 " 11.6g 234 ♂ " " 86-37-12-32-26-340 " 11.7g
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August 1948 Catalog (1) May 21 Gorn ESE San Antonio, 1200 ft, Baja California 235 ♂ Elf Owl wt. 35.4g May 23 Buena Vista, 25'-ft, 23°38'N 109°4'’W, Baja California 236 ♂ Myotis californicus 77-40-7-13-11-232 wt. 3.1g 237 ♀ 1 Emb. 10mm " " 78-37-7-13-11-219 wt. 3.1g 238 ♂ Testis 7mm Perognathus spinatus 185-111-23-10-7’c " 15.7g 239 ♀ Lactating No Embs. " " 144-65-7-22-10-7 " 14.6g May 24 Same Location. 240 ♀ 1 Emb. 8mm Tadarida mexicana 95-32-8-18-12-298 wt. 8.8g 241 ♀ No Embs. Eptesicus fuscus 100-41-8-16-11-298 " 9.7g 242 ♀ 2 Emb. 4mm " " " 103-45-8-15-13-307 " 10.0g May 24 Las Cuevas 23°34'N, 109°39'W, Baja California 243 ♂ Natalus mexicanus 92-54-8-14-11-270 wt. 5.8g 244 ♀ 1 Emb. 14mm " " 97-52-8-14-11-265 " 5.5g 245 ♀ 1 Emb. 14 mm " " 95-52-9-15-11-270 " 5.3g 246 ♀ 1 Emb. 15mm " " 92-51-8-14-11-264 " 5.8g 247 ♀ 1 Emb. 14 mm " " 90-50-7-15-11-272 " 5.3g 248 ♀ 1 Emb. 14mm " " 93-54-7-14-11-268 " 5.3g 249 ♀ 1 Emb. 15mm " " 98-53-8-14-11-267 " 5.0g 250 ♀ 1 Emb. 14mm " " 95-52-7-14-11-268 " 5.2g 251 ♀ 1 Emb. 14 mm " " 95-53-8-14-11-268 " 5.4g 252 ♀ No Embs " " 92-47-7-14-11-267 " 4.8g May 25 El Carisalito, 1400 ft, 5 mi N Santiago, Baja California 253 ♀ 2 Emb. 10mm Pipistrellus hesperus 72-27-6-12-10-200 wt. 3.8g 254 ♀ 2 Embs 7 mm Eptesicus fuscus 104-43-10-17-13-310 " 8.5g 255 ♀ No Embs. " " 100-41-11-17-12-307 " 9.1g 256 ♀ Two Embs. 5 mm " " 106-45-10-16-12-310 " 9.5g 257 ♀ 1 Emb. 22mm Macrotes californicus 92-39-13-33-27-330 " 11.6g
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Quest 1948 Catalog 12 May 25 El Carrisalito, 1400 ft 5 mi N. Santiago, Baja California 258 ♂ Antrozous minor 108-44-12-29-23-352 wt 14.8g 259 ♀ " " 114-47-11-29-24-344 " 15.3g 260 ♂ " " 108-41-12-30-23-345 " 15.4g 261 ♂ " " 111-46-11-28-23-350 " 15.5g May 26 Same Location 262 ♀ 2 Emb. 37mm Neotoma lepida 291-118-34-31-27 wt 178.5g 263 ♂ Testes 19mm " " 309-131-36-30-29 " 166.9g May 27 Same Location 264 ♀ 1 Emb. 13mm Myotis californicus 178-39-7-13-12-- wt 3.1g 265 ♀ 2 Embs. 9mm Pipistrellus hesperus 73-29-6-11-10-212 " 3.3g 266 ♀ 2 Embs 11mm " " 68-28-6-11-10-203 " 3.8g 267 ♂ Antrozous minor 110-45-12-26-24-349 " 16.2g May 28 Same Location 268 ♀ 1 Emb. 9mm Myotis californicus 79-37-7-13-12-229 wt 2.8g May 29 Same Location 269 ♀ Pipistrellus hesperus 70-31-6-12-10-205 wt 3.5g 270 ♀ Myotis californicus 80-41-7-13-11-230 wt 3.5g 271 ♂ Antrozous minor 107-47-12-27-24-360 wt 15.8g May 30 El Chorro, # 800 ft, 2 mi W. Agua Caliente, Baja California. Capa District 272 ♀ 2Emb,6mm Dasypterus egu 121-53-9-16-12-355 wt 11.7g 273 ♀ 2Emb. 8mm " " 119-54-9-16-10-345 " 12.8g 274 Vta zhalassina 275 " " 276 " " 277 Cremidophorus 278 ♀ 3 Emb. 13mm Citellus leucurus 224-79-38-12-6 wt. 102.3g
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Quest 1948 Catalog 13 May 31 El Cloro, 800+ ft, 2 mi W Agua Caliente, Cape District, Baja California 279 ♀ Dasypus ega 118-55-10-19-9-370 wt. 12.0g 280 ♀ 2 Emb 8mm " " 114-54-9-18-10- " 12.9 281 ♀ 2 Emb 8mm " " 122-55-10-18-11-366 " 13.3 282 ♀ 2 Emb 8mm " " 119-51-10-17-12-362 " 14.2 283 ♂ Tadarida fenoscoca 113-46-10-21-17-345 " 10.2 284 ♀ " " 101-37-9-21-15-320 " 10.0 285 ♀ 1 Emb 13mm " " 100-42-9-20-17-325 " 10.8 286 ♀ 1 Emb 17mm " " 108-43-9-20-16-335 " 12.0 287 ♂ Tadarida mexicana 89-33-10-18-14-295 " 6.5 June 1 Santa Anita, 250+ ft, Cape District, Baja California 288 ♂ Dasypus ega 105-47-9-15-9-330 wt 8.2g 289 ♂ " " 115-46-10-16-9-345 " 11.4g 290 ♂ " " 124-53-10-18-11-345 " 11.5g 291 ♂ Myotis velifer 85-37-9-14-11-265 " 5.1g June 2 6 mi N San Jose del Cabo, 250+ ft, Baja California 292 ♂ Dasypus ega 116-51-9-14-9-340 wt. 10.6g 293 ♀ 2 Emb 4mm " " 117-55-10-16-11-345 " 11.3g 294 ♀ 2 Emb 3mm " " 122-52-10-17-11-362 " 12.3g 295 ♀ Lactating No Embs Lipnus californicus 520-70-112-120m-145 wt. 1945g June 2 Cerro Cirilo, 600+ ft, 4 mi N San Jose del Cabo, Baja California 296 ♀ 1 Emb 14mm Balantiapteryx plicata 62-19-10-16-11-272 wt 5.3g 297 ♀ 1 Emb 14mm " " 68-22-10-15-10-266 " 5.6g 298 ♂ " " 62-16-9-15-11-245 " 4.0g 299 ♂ " " 60-16-9-15-12-247 " 4.1g 300 ♂ " " 63-19-9-14-11-254 " 4.2g 301 ♂ " " 61-16-9-14-11-250 " 4.3g 302 ♂ " " 62-17-9-14-11-250 " 4.3g
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Quest 1948 Catalog 14 June 2 Cerno Cirilabo 600 ft, 4mi N San Jose del Cabo, Baja California 303 ♂ Balantiapterys plicata 60-17-9-14-11-251 wt 4.4g 304 ♂ " " 61-17-9-14-10-242 " 4.4g 305 ♂ " " 64-18-9-14-11-254 " 4.5g June 3 6mi N San Jose del Cabo, 250 ft Baja California 306 ♂ Perognathus spinatus 183-105-24-10-7 wt 19.3g 307 ♀ Testes 8mm " " 191-105-24-10-8 " 19.6g 308 ♀ No Embs " " 175-100-21-8-7 " 12.7g 309 ♀ No Embs " " 188-102-24-10-7 " 18.9g June 4 Lost Location 310 ♀ No Embs Neoloma lepida 298-150-34-29-25 wt 119.0g 311 ♀ " " " 250+75+37-33-26 " 181.1g June 5 9mi SW San Jose del Cabo, 300 ft, Baja California June 5 ♂ Balantiapterys plicata 63-18-9-15-12-255 wt 4.3g June 5 1 mi N Cabo San Lucas, 20 ft, Baja California 313 ♂ Tadarida femoracca 107-43-10-22-17-340 wt 9.2g 314 ♂ " " 100-41-10-21-15-335 " 10.3g 315 ♀ — " " 101-42-10-21-15-335 " 11.1g June 7 Punta Gasparino, 10 ft, 23°16'N, 110°9'W, Baja California 316 ♂ — Perognathus arenarius 169-101-24-9-6 wt 12.1g 317 ♂ Testes 7mm " " 98+26+22-9-7 " 13.3 318 ♂ Testes 7mm " " 175-100-24-10-6 " 13.9 319 ♂ Testes 8mm " " 166-98-23-10-7 " 14.9 320 ♂ Testes 8mm " " 172-101-23-9-6 " 15.5 321 ♀ No Embs " " 168-98-23-9-6 " 12.0 322 ♀ " " " 159-92-22-8-6 " 12.0 323 ♀ " " " 167-98-23-9-6 " 12.1 324 ♀ " " " 177-102-24-9-7 " 13.5
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Quast 1948 Catalog 15 June 8 Punta Gasparino, 10^+ft 23^\circ 16'N 110^\circ 9'W Baja California 325 \delta Perognathus arnensis 155-90-22-9^-6^ wt. 12.5g 326 \delta " " 172-103-22-9-7 " 12.8 327 \delta " " 161-87-22-9-7 " 13.8 328 \delta " " 173-98-23-9-7 " 14.5 329 \delta " " 173-99-24-9-7 " 15.0 330 \delta " " 169-99-24-10-7 " 15.1 331 \delta " " 170-100-24-9-7 " 16.0 332 \phi No Embs " " 170-103-23-9-6 " 11.1 333 \phi " " " " 174-102-24-9-7 " 11.2 334 \phi " " " " 168-100-24-9-6 " 11.3 335 \phi " " " " 162-98-22-9-6 " 12.2 336 \phi " " " " 166-96-23-9-7 " 12.3 337 \phi 4Emb. 4mm " " 177-98-24-10-7 " 16.6 June 9 San Juan de la Laguna, 1600ft, W Base Sierra Laguna, Baja California 338 \phi No Embs. Cetellus leucurus 205-60-37-12-7^ wt 108.0g 339 \phi 2Emb. 11mm Pipistrellus leypaus 67-27-6-12-10-202^w " 3.7g 340 \delta Eptesicus fuscus 103-43-10-16-13-301 " 9.1g 341 \delta " " 106-42-10-16-13-312 " 9.6g June 10 La Laguna, 6200ft, Sierra de la Laguna, Baja California 342 \delta Eptesicus fuscus 95-42-10-16-12-295 wt- June " 343 Vta thalissina 344 " " 345 " " 346 " " June 11 Same location 347 \delta Eptesicus fuscus 99-41-10-17-13^-304^ wt-
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Quest 1948 Catalog 16 June 12 La Laguna, 6200 ft, Sierra de la Laguna, Baja California 348 ♂ Peromyscus eremicus 185-106-21-18-15 wt — 349 ♂ " " " 190-106-19-19-16 " — | 350 ♀ No Embs Peromyscus truei 202-114-23-24-20 " — 351 ♀ " " " " 182-100-22-21-19 " — 352 ♀ — Tadarida mexicana 95-34-10-18-17— wt — 353 ♂ Pipistrellus hesperus 65-28-6-11-9-184 wt — 354 ♂ Eptesicus fuscus 84-34-10-18-13-290 wt — 355 ♂ " " 104-44-10-17-13-293 wt — June 13 Lane Location 356 ♂ Peromyscus truei [Skull Only] June 13 Todos Santos, 50 ft, Baja California 357 ♀ — Tadarida mexicana 94-35-9-18-12-295 wt 8.2g 358 ♀ No Embs. " " 90-35-10-18-13-300 " 7.8g June 14 Mina Palma del Medio, 400 ft, 4mi NSE Pescadero, Baja California 359 ♂ Microtus californicus 88-35-12-32-27-317 wt 10.5g 360 ♂ " " 85-33-13-33-28-325 " 10.6g 361 ♂ " " 91-36-13-32-26-320 " 11.8g 362 ♂ " " 90-34-14-33-27-323 " 12.1g June 17 W end Lano de Hlrey, 50 ft, Baja California 363 ♂ Perognathus baileyi 185-105-26-9-6 wt 19.2g 364 ♂ " " 190-108-25-9-8 " 20.7g 365 ♂ " " 197-108-25-9-8 " 22.1g 366 ♂ " " 200-105-25-9-7 " 23.1g 367 ♀ " " 104+40+25-10-7 " 28.6g 368 ♀ No Embs. " " 186-103-26-10-8 " 23.3g 369 ♀ 2 Embs 7mm " " 181-95-25-10-7 " 25.2g 370 ♂ Dipodomys merriami 234-140-37-14-11 " 41.4g
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Quast 1948 Catalog 17 June 17 Pozo Grande, 25°46'N, 112°02'W, Baja California 371 ♂ Eptesicus fuscus 96-40-8-15-11-291 wt 7.2g 372 ♂ " " 97-43-10-15-12-290 " 7.2g 373 ♂ " " 105-44-9-17-12-306 " 7.4g 374 ♀ No Embs. " " 94-37-10-16-12-300 " 8.0g June 18 375 ♀ No Embs. Skull only San Jorge, 5±ft, 25°44'N, 112°02'W, Baja California 105-47-10-17-12-295 " 8.1g -pickup 376 - Lynx rufus June 19 Demo Location 377 ♂ Perognathus arenarius 378 ♂ " " Discarded 379 ♂ " " 380 ♂ " " only - skulls 381 ♂ " " 382 ♂ " " 383 ♂ " " Discarded 384 ♀ " " 385 ♀ Perognathus baileyi Discarded 386 ♀ Perognathus arenarius 387 ♀ " " 388 ♂ Dipodomys merriami 237-142-37-14-11 wt 32.9g 389 ♂ " " 247-144-37-14-11 " 38.0g 390 ♂ Perognathus arenarius 90±-25±-21-Y-6c wt 8.6g 391 ♂ " " 143-81-20-7-5 " 8.9g 392 ♂ " " 150-80-21-7-5 " 9.1g 393 ♀ No Embs " " 135-75-20-7-5 " 7.6g 394 ♀ ' " " 144-82-20-7-5 " 8.4g 395 ♀ " " " " 151-83-21-7-5 " 9.2g 396 ♀ " " " 147-80-21-7-5 " 9.3g
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Quast 1948 Catalog 18 June 19 San Jorge, 5+ ft, 25°44'N, 112°07'W, Baja California 397 ♀ No Embs Perognathus arenarius 152-92-21-7-5 wt 10.0g 398 ♂ Perognathus baylei 194-109-25-10-7 wt 21.0g 399 ♂ Perognathus arenarius 138-78-20-7-5 wt 9.1g 400 ♂ " " 147-80-20-7-5 " 9.4g 401 ♂ " " " 145-83-20-7-5 " 10.3g 402 ♂ " " " 148-86-21-7-5 " 10.9g 403 ♀ " " 130-74-20-7-5 " 7.3g 404 ♀ " " 137-74-21-7-5 " 8.9g 405 ♀ " " 146-86-21-7-5 " 9.2g Formalin June 20 Same Location 406 ♀ No Embs Dipodomys merriami 239-150-37-15-11 wt 31.9g 407 ♂ Peromyscus maniculatus 164-34-23-21-17 " 25.6g 408 ♀ No Embs Perognathus baylei 183-100-25-10-8 " 18.9g 409 ♂ Perognathus arenarius 144-82-21-7-5 " 8.3g 410 ♂ " " " 148-81-21-7-5 " 9.3g 411 ♂ " " " 161-91-21-7-5 " 10.0g 412 ♂ " " " 147-83-21-7-5 " 10.1g only 413 ♀ No Embs " " 117+55+21-7-5 " 8.0g Skeletons 414 ♀ " " " 137-80-20-7-5 " 8.2g 415 ♀ " " " 149-82-21-7-5 " 9.1g 416 ♀ " " " 142-81-20-8-5 " 9.2g June 21 Same Location Skull Only Caught by S.G. Duncan 417 ♂ Peromyscus maniculatus 166-76-22-19-14 wt 25.3g 418 ♂ " " 170-76-24-19-18 " 22.4g 419 ♂ " " 179-75-22-19-17 " 33.8g 420 ♂ " " 166-73-22-20-17 " 24.0g 421 ♂ " " 167-74-22-18-16 " 25.3g
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Quast 1948 Catalog 19 June 21 San Jorge, 5±ft, 25°44'N, 112°07'W, Baja California 422 ♀ Peromyscus maniculatus 175-77-23-20-17 wt. 26.8g [caught by S.B. Benson] 423 ♂ " " " 31.1g 424 ♂ " " " 31.5g 425 ♀ " " " 20.4g 426 ♀ " " " 23.6g 427 ♀ " " " 27.3g 428 ♀ " " " 29.4g June 22 8.3 mi by road N Campoli, 26°32'N, 110°37'W, Baja California 429 ♀ 1 Emb, 26mm Macrotes californicus 94-39-13-32-28-330 wt. 12.9g June 22 Santa Rosalilito, 25±ft, SE end Bahia de Concepcion, Baja California 430 ♀ Lactating No Embs Antrozous minor 111-48-13-28-26-363 wt. 15.0g Lactating 431 ♀ No Embs " " 110-48-12-31-27-351 " 14.2g 432 ♀ Lactating No Embs " " 111-46-12-30-26-353 " 16.0g 433 ♀ No Embs Eptesicus fuscus 96-43-9-16-13-288 " 7.4g 434 ♂ Myotis californicus 75-37-7-13-11-218 " 2.6g June 23 San location 435 ♂ Dipodomys merriami 241-149-40-15-12 " 40.0g June 23 Mullege, 25±ft, Baja California 436 ♀ 2 Emb, 19mm Eptesicus fuscus 106-44-10-18-14-300 wt. 12.0g June 25 Los Martires, 300±ft, 23 mi by road N.W San Ignacio, Baja California 437 ♂ Eptesicus fuscus 102-44-10-15-12-308 wt. 9.3g 438 ♂ Myotis californicus 80-39-7-13-12-212 " 2.9g June 26 Arroyo San Luis, 800±ft, 9 mi W Calmelli, Baja California 439 ♀ Lactating No Embs Choeronycteris mexicana 77-5-12-16-12-334 wt. 16.6g 440 ♀ No Embs Corynorhinus 95-47-9-35-31-270 " 6.0g 441 ♂ Myotis californicus 84-40-7-13-12-220 " 3.6g June 27 Lago Locator 442 ♀ 1 Emb, 30mm Choeronycteris mexicana 81-8-12-17-12-345 wt. 24.2g
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Quest 1948 Catalog 20 June 29 Santa Rosalia, 10+ ft Baja California 443 ♂ Pipistrellus hesperus. 17-29-6-13-10-207 ex wt-- June 30 San Luciano, 100+ ft, 5 mi S Santa Rosalia, Baja California 444 ♀ No Embs Eptesicus fuscus 106-45-10-17-13-297 ex wt-- 445 ♀ 2Emb 15 mm " " 102-42-10-17-12-285 " " 446 ♀ 1Emb 12mm " " 101-42-10-17-12-283 " " June 30 Mina La Zenta, 100+ ft, 2 mi N Santa Rosalia, Baja California 447 ♂ Leptonycteris 69-0-14-16-12-380 ex wt-- 448 ♂ " " 71-0-14-16-11-385 " " 449 ♀ " " 67-0-14-16-11-383 " " 450 ♀ " " 74-0-15-18-12-392 " " July 11 24 mi NW Punta Prieta, 2000+ ft Baja California 451 ♂ Tadarida fennecica 108-46-13-25-18-350 ex wt 13.4g July 12 Lane Location 452 ♂ Peromyscus eremicus 190-108-20-21-17c wt 17.4g July 12 Catarina, 1850+ ft Baja California 453 ♀ Myotis californicus 79-40-7-13-12-219 ex wt 3.4g; 454 ♂ Pipistrellus hesperus 63-27-6-11-9-190 " 2.0g 455 ♀ " " 71-30-6-13-9-212 " 2.8g 456 ♀ " " 76-30-6-13-10-215 " 3.8g 457 ♀ " " 73-30-6-12-9-209 " 4.3g July 14 458 ♀ No Embs Chroonyctus mexicanus 77-10-12-16-12-351 ex wt 16.2g July 15 8 mi N Rosario, Baja California 459 ♂ Perognathus fallax 180-106-25-10-8 wt 16.0g 460 ♀ Im No Embs Peromyscus eremicus 163-95-21-19-16 " 12.8g 461 ♂ Peromyscus maniculatus 161-78-21-21-18 " 21.1 462 ♂ " " 163-79-21-19-17 " 18.2g
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Quast 1948 1950 21 Catalog Aug 30 Echo Lake, 7500 ft, 5 mi S.W. Meyera, Eldorado C., Calif. 463 ♀ Citellus lateralis 223-55-39-19°-10° 120.5 g 464 ♂ Citellus lateralis 272-92-41-20-15 161.9 g 465 ♂ Citellus lateralis 260-90-41-19-12 148.8 g Sept. 1 same 466 ♀ Citellus lateralis 261-95-38-20-14 136.0 g 467 ♀ Citellus lateralis 263-96-40-22-15 173.3 g 468 ♀ Citellus lateralis 273-81-41-19-16 161.8 g 469 ♀ Citellus lateralis 249-85-41-21-16 129.0 g Sept. 9 Opossums reared in captivity at MVZ by Harold Reynolds (killed Sept. 5) 470 ♀ H. Reynolds # 121012 (captive No) 360-150-37-39-36 233.2 g 471 ♂ " " 121013 " " 360-150-38-40-39 231.2 g 472 ♂ " " 121014 " " 360-150-37-39-37 236.1 g Sept. 11 same 473 ♀ H. Reynolds # 121015 (captive No) 345-142-37-38-35 217.1 g 474 ♀ " " # 121016 " " 352-148-37-38-34 249.5 g
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Journal
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Quast, 1948 Journal April 17th E side Cocopah mts., 21 mi S.S.E. Mexicali, Baja California. 9:05 A.M. Camped 1/2 mile west of Mexicali - San Felipe road on alluvial fan of sand and rock on east side of Cocopah mountains. The wash has several species of low cactus growing among ironwood, ocotillo and creosote. No grass dry or fresh is visible in the wash and dry grass found but rarely in the dry surrounding hills. Minimum temperature last night was 48 1/2 deg F., temperature at 7:00 A.M., 56 deg F. A strong wind blew all day yesterday and up till about 2:00 A.M. The sky was clear yesterday and is clear this morning, a breeze is coming up at this time of writing. Of 500 traps placed in center of wash (alluvial fan) five were sprung and only two contained specimens, both of which were Dipodomys merriami. Tevis, Murray, and Dr. Benson caught Perognathus spinatus & baileyi, Peromyscus eremicus & crinitus, but no Dipodomys merriami. April 8 Punta San Felipe, 50- ft., Baja California. 9:15 P.M. Arrived this camp about 5 P.M. yesterday. We are located about 2 mi east of the town of San Felipe about 200 yards from the beach. We are about a mile from the end of the point which lies NNE of us beneath a rocky hill in a group of hills some of which are an estimated five or six hundred feet high. The nearest
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Quast 1948 Journal 2 April 8 Punta San Felipe, 50+ ft, Baja California fresh water is at the town of San Felipe. The drive here from our camp on the Cocopah mts. varied greatly in road quality. A new road is being built from Mexicali to San Felipe. At our time of travelling the fills were completed with surfacing and bridge building yet to be done up to a distance of 20 miles south of El Mayor. At a point where the playa meets some black slate hills sand dunes blocked our progress and we had to drive via car "trails" over the playa for all but the last of the trip. The low International truck had a little difficulty navigating over the high centers but otherwise the drive was not difficult. Because of the mud surface of the network of playa roads it would be suicide to venture on to them after wet weather. Our sole point of ref- erence while driving over the playa were the completely arid rocky hills to our right and the beginnings of a telephone line running to San Felipe over the plays. The only signs of life on the playa were dog or coyote tracks and beer and tequila bottles spaced at about fifty foot intervals where they had been thrown out of vehicles by thirsty travellers. Creosote and ocotillo were visible growing in the
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Quast 1946 Journal 3 April 8 Punta San Felipe, 50+ ft., Baja California alluvial fans between the playa and the rock hills. Approximately 20 miles north of here the road left the playa and led through the alluvial fans for the rest of its journey. Here we were surrounded by the desert association of Palo Verde, Ocotillo, Creosote bush, some type of Copal tree, small Cardons, and small desert bushes. Five Citellus tereticaudus were seen, four or five whip-tailed lizards and one red-tailed hawk with what looked like a snake in its beak. We were supplied with road signs about every ten miles for the last thirty miles of our trip. Two passen- gers cars and four trucks were passed after we entered the playa. San Felipe is a town of about 100 houses arranged in a rectangle around a dusty area in the center about 100 yds square. A dozen fishing boats (small) were anchored in the harbor facing the south side of the Town. We met two American sportsmen in a couple days who had been disappointed in game fishing. Some potatoes and Mexican sausage were pur- chased to augment our provisions. Our camp includes a neat shack that we appropriated after being told by a few of the inhabitants that no one had lived here for
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Quast 1948 Journal 4 April 8 Punta San Felipe, 50+ ft., Baja California. years. Today we were told that the house belongs to the assistant chief of police at Mexicali. Minimum temperature last night was 57°F, maximum today was 76° in the shade. Yesterday and today were beautiful days with little wind and cloudless skies. 50 live traps set entirely in rocks and talus above camp caught two Perognathus spinatus, four Peromyscus crinitus and one Peromyscus eremicus. The traps were baited with rolled oats and bird seed - the latter seeming to be preferred by one Perognathus pericellulus that we have been observing in camp. Tonight fifty live traps were set in the talus slopes and ten Schuyler traps among the rocks on top of the hill above camp. The live traps again baited with rolled oats and bird seed, the Schuylers with dried apicots. Murray caught a Crotalus cerastes this afternoon in the talus accumulation and a Cemidophora in a sandy wash. Tevis also caught a Vta and a Callisaurus. Dr. Benson shot a Pipistrellus hesperus flying about camp this evening. An American Raven flew over camp this evening.
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Quast 1948 Journal 5 April 10 Punta San Felipe, 50+ ft, Baja California Minimum temperature reading morning of April 9 was 66 F, maximum yesterday was 82 1/2 F in the shade. Live traps yesterday caught 1 Pero- grathus spinatus, 3 Perognathus formosus, 5 Peromyscus crinitus. Yesterday a clear warm day with a cool breeze from the east. Shot a Lipestrelles leporinus at dusk flying over the beach with 3 or 4 others of the same species. While we were skinning last night in one room of the cabin 2 Tadarida mexicana flew into the room (10:30 PM & 11:00 P.M.) and were secured by Dr. Benson. Dr. Benson killed two Crotalus cerastes in a sand gulley where he was setting traps for Coyotes; Rattle- snakes were killed about midnight last night. 7:40 P.M. Minimum temperature last night minimum was 68 1/2 F, Maximum today was 80 1/2 F at 1:00 P.M. although the temperature has crisen to 80 1/2 at the time of writing after dropping to 80 this afternoon. Ten Schuyler traps set last night in
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Quest 1948 Journal 6 April 10 Punta San Felipe, 50+ ft., Baja California rocks on hill in back of camp caught 1♀ Neotoma lepida. The Neotoma was caught at the top of the hill in the solid rocks above the talus slope. Ten Museum specials had 3 Perognathus formosus in them by 9:00 P.M. last night. They were taken out and the traps reset in the same positions to yield 2 Peromyscus crenicus, 1 Dipodomys merriami, and 1 Perognathus spinatus this morning. Fifty live traps set on hill east of camp in rises between gullies yielded 5 Perognathus formosus (#20-24 incl), 10 Perognathus spinatus (#25-34 incl), and two Peromyscus crenicus (#35, 36). To date none of the specimens caught have had embryos. At noon tried my first octopus I called "Pul-po". Dr Benson boiled it first, but finally decided to cook it in the pressure-cooker because of its toughness and the tenacity with which the skin clung to the meat. What finally emerged smelled like slums, looked like dirty parsnips, and chewed like vul- canized rubber. Tevis claimed it had a subtle flavor, but I didn't go that far.
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Quast 1948 Journal 7 April 10 Punta San Felipe, 50 ft, Baja California Shot another Pipistrellus hesperus at dusk. It was flying above the high part of the beach where the sand meets the cliffs of permanently dry land. Bats first appeared at approx. 5:00 P.M. flying in a westwardly direction along the beach perhaps from the small sea-caves and crevices of the rocky mountain east of us. At most five bats were seen at once in one general area, usually they flew in two and three. All looked like Pipistrellus hesperus. The day was warm and sunny with a breeze from the south-east coming up about 4:00 P.M. Dr. Benson lost a eggote and the accompanying steel trap last night. He shot an American Raven out of 4 or 5 Buzzards and 2 American Ravens, all in a group, gathered around a Coyote carcass. The Raven had a mottled appearance which Dr. Benson thought might be due to malnutrition. April 11 7:00 A.M. Saw a coyote this morning at 6:30 A.M. 100 yds west of camp, also saw a probable Pipistrellus hesperus flying east over camp about 6:00 A.M. Saw the prehistoric fish weir off the
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Quest 1948 Journal 8 April 11 Punta San Felipe, 50 + ft, Baja California beach at the end of the road - the beach just east of us at the foot of a large rocky hill. There is little remaining, only a few piles of rock about two ft. high and one ft. deep and 50 ft. long. The fish weir is mentioned in Nelson, "Lower Calif. & its Natural Resources. 8:05 P.M. Minimum temperature last night was 68°F, maximum this afternoon was 75°F. It was cloudy and cool this morning, clearing up and getting warm in the afternoon. A good breeze arose about fifteen minutes ago. Took a walk around the point with Dave and Murray at 11:00 A.M. and got back at 2:00 P.M. Our route covered the rocky hills and desert sand in back of our camp. Saw a Red-tailed Hawk and a jack Rabbit and shot 3 Callisaurus draconoides and 2 Dipsoaurs. dorsalis (#39-43 incl.). The Callisaurus have an interesting habit of running from you only up to the edge of a bush and then waiting to see if you make another movement after them. It is quite easy to get close to them if you move slowly. The Dipsoaurs seem more prone to run around a bush and stop on the other side, out of sight. Went bat shooting at 7:00 P.M. Tonight will
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Quart 1948 Journal April 11 Punta San Felipe, 50' ft., Baja California Murray and Tevis and saw many bats fly-ing along the beach and circling about the hill above camp. They looked like two species, and were probably Pipistrellus leporinus and Tadarida mexicana. Murray shot one Tadarida mexicana. The Pipistrellus seem to be as-sociated in loose groups of 4 or 5, while the much bigger Tadarida flew singly. Tevis located a well about 300 yds from the beach in the gully S.W. (San Felipe side) of camp. The mouth of the well has silted in so that it is about 20 ft in diameter and thus is only what looks like two inches of brackish water in the bottom, 9:15 P.M. A strong gale has come up from the north and the air is full of dust. This evening while we were shooting bats at the beach we noticed a large school of fish breaking water in the shallow off-shore water. The fish jumped and made the water boil about 50 yds from the beach for about an hour. Dr. Benson tried to get some of them by plug casting, but was unsuccessful. The fish appeared to be three or four feet long. We plan to change the location of our camp tomorrow to some other place in this area, the location depending upon the roads.
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Quaest 1948 Journal 10 April 11 Punta San Felipe, 50+-ft, Baja California Beach Hills of Bare rock and talus Desert pave- ment N Evidence of stone fish weir Road to Mexicali Wash Beach Camp Sandy Wash Well Approx 1 mile San Felipe Bay Designated Camp "x" Desert Association of Sand, Ocotillo, Encelia, Creosote and Elephantium. San Felipe Beach Fishing boats Beach Desent Pavement Beach
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Quast 1948 Journal April 12 9 mi W. Punta San Felipe, 200± ft, Baja California 6:35 P.M. Departed San Felipe 12:30 and arrived this place about 1:30. We are 9.3 miles west of San Felipe by road and are camped on a large flat wash about 200 yds from the Sierra San Felipe. The wash is composed of coarse white sand and decomposing granite rocks. Growing in the wash are tall Ocotillo, mesquite, Elaphrium, cardone, and Palo Verde. The hills have ocotillos at low levels and an occasional barrel cactus. The rock is mostly granite and weathers in a spherical fashion instead of the shale-like fractures of the lava at Punta San Felipe. The rocks and talus are noticeable lighter than those of Punta San Felipe and the slopes contain much more gravel than those around the former camp. Saw a Dipsosaurus, a Calisaurus, and shot a Cnemidophorus between two and four this afternoon. Shot a Black-throated grey warbler from the top of an Ocotillo this afternoon. Dr Benson shot one Phleomoeus Gnateater and saw a Citellus tereticaudus and several Citellus leucurus. He also found an old weathered horn of a Mountain Sheep. I set out 50 live traps on the hill-
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Quest 1948 Journal 12 April 12 9 mi W. Punta San Felipe, 200 ft, Baja California sides this afternoon varying in distance from 20 ft to 100 ft from the wash below. There are many Nictana signs in small hollows in the foothills and many Lepus signs in this wash. Dr. Benson stated that he saw probable Kit-fox and Coyote tracks in one of the canyon washes. A large burrow that I saw and described to him was said to be a possible Badger. Saw about five Ash-throated fly- catchers perched in an ironwood and could hear three of them from a distance of 100 yds. Costa hummingbirds are common around camp, one even coming up and inspecting a red shovel handle. Probable Dejeodonyx burrows in the wash, some of which have a crater built up around them of something which looks like old dandelion seed. We are about 5 mi. north of the type locality of Perognathus formosus. April 13 [Written at El Mayor, 30 ft, Rio Hardy, Baja Calif.] The fifty live traps set in the decomposed granite foothills caught but one Perognathus spinatus, one ♂ Perognathus formosus, and one ♀ Peromyscus crinitus (#45-46 incl.). Minimum temp. last night was 58° F
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Quast 1948 Journal 13 April 13 El Mayor, 30 ft., Rio Hardy, Baja California 8:45 P.M. Arrived here approx. 6:30 P.M. after the drive from San Felipe, leaving there at 12:30 P.M. The drive was over approximately the same terrain as described for April 8, except that we drove on a different road across the playa about 30 mi north of San Felipe for a short stretch - closer to the mountains, thereby avoiding the high center in the roads traveled on the 8th. We were delayed about an hour 10 miles south of El Mayor where they were putting in a large corrugated iron culvert. About 10 men were putting in the culvert by hand and had difficulty in lining it up and getting the sections to interlock properly. The mountains above the playa described on the 8th are absolutely dried and of colors ranging from red to jet black. Innumerable pockets dot their surfaces and sections of them look like cooled globes of slag. The new highway to San Felipe will run tangent to them and through some of the jet black ones. In some places the wind-blown sand gathers in the crests and follows in exactly the way as snow. From the way the new roadway looks it will be a very ample 2 lane highway.
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Quast 1948 Journal 14 April 13 El Mayor, 30 ft, Rio Hardy, Baja California We are camped about 1/2 mile above a well with a pump and about 1/4 mile north of a point where the Rio Hardy meets the highway. We are 75 yards east of the highway and camped in river bottom material The river Hardy is an old river, judging from the way it meanders in the flood plain. Stretches of the flood plain east of us are green and appear very fertile. Tules grow along the banks and fish may be seen jumping or stirring its surface. A Mexican told us that the fish in the river were Mullet and Catfish. Insects abound here, judging from the numbers gathered around our gasoline lanterns. Included are mosquitoes and gnats in hordes. Three distinct sizes of bats was seen flying overhead just before dark, the smallest one probably being a Pipistrellus. The mountains on the west of us are tilted shale and volcanic rock with large veins of white quartz. Very little is growing on them except an Encelia-like plant widely spaced. The washes are full of creosote and ironwood and are broken by the lingua of alluvial fans that rise high above the wash area.
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August 1948 Journal April 13 El Mayor, 30 ft, Rio Hardy, Baja California It is now 9:25 P.M. and the mosquitoes and grats have disappeared. Arising from the river bottom are all kinds of noises; one, a loud brggyyy of about 2½ seconds given at one second intervals, and many others. We are leaving for Mexicali tomorrow. Seen on the trip today were several Round-tailed ground squirrels, an Antelope Ground Squirrel, and a White [illegible] Egret. April 15 Cerro De Centinela 300 ft 13 m WSW Mexicali, Baja California 7:30 A.M. Camped in an open wash near an acacia tree 200 yds from the mountains on the north side of the road. The mountains are bare and rocky except for a few small bushes growing on its sides in the water- courses. Minimum temp last night was 78° F. 9:00 P.M. Maximum temperature during the day was 100° F - taken by Maximus- Minimum thermometer in shade under one of the trucks. yesterday evening 50 live traps set in small meandering wash on alluvial slope 300-100 approx. yards from bare mountain slope caught: 4 Perognathus spinatus, 2 Perognathus formosus and 2 Peromyscus crinitus. The specimens
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Quast 1948 Journal 16 April 15 Cerro De Centinela 300 ft 13 mi WSW Mexicali, Baja California. were put up by Teve & Murry and are listed in their catalogs under this date. The bait for the live traps was ground corn, the only one available at the time. Traps set tonight also use ground corn for bait. In the two nights we have been here, we have seen no bats flying at dusk, but five nighthawks were seen last night at dusk. Flies are very numerous in the daytime, but so far have seen no mos- quitoes at this location. Bats may be heard "chirp"ing overhead at the time of writing. The nearest water is an irrigation ditch approx 5 miles down the road (east) of here. Superdemya muriami are common in the wastes low on the slope which contain sand, but their place is taken by the Perognathus on the slopes of more gradual and gravel. Perognathus (presumable) . mounds & holes may be seen around Encle, and Creosote bushes. The hill north of us is about 800 ft above us and of a mixture of dark volcanic rocks and granite with heavy quartz veining on its face. Again, it is completely
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Ocast 1948 Journal #7 April 15 Cerro De Centinela 300 ft 13 mi WSW Mexicali; Baja California and. I was very surprised at San Felipe to find dried specimens of the mushroom Coprinus comatus along the roadside. Tevie said he found one at El Mayor and Dr. Benson brought in a mushroom of the puffball type, but with a stem elevating the head about 1/2 in above the ground. The cup was full of brown spores. Laguna Salada may be seen to the S.W. at the pass 1 mi west of our camp. Murray stated that he has seen only Vita and Calisaurus at this location. Dr. Benson killed a shrike at sundown this evening. Our camp is located by a sandy wash by an ironwood tree and surrounded by alluvial material on which is growing ironwood, Ocotillo, Encelia, Cthella cactus, and Creosoto bushes with occasional shy tufts of grass in the sand proper. April 17 Cerro Prieto 30 ft 20 mi SSE Mexicali Baja Calif. We are camped approx. 500 yds N.E. Cerro Prieto proper next to a large irrigation canal running generally north. We are surrounded by large mesquite trees.
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Quast 1948 Journal 18 April 17 Cerro Prieto 30 ft 20 mi SSE Mexicali Baja Calif. Minimum temp. the night of the 15th at Cerro de Centinela was 76 F, maximum during the day of the 16th was 100 F. Minimum at this camp last night was 63 F and the temperature at time of writing 8:00 A.M. is 71 F. 9:30 A.M. Have moved camp from location beside ditch irrigation to base of Cerro Prieto on N.E. side. The reason for moving was to be closer to the rocks of the mountain and farther from the pigs, goats, cows, and Mexican dogs of a farmhouse (Agua Caliente on map). The trip from Cerro de Centinela camp to here yesterday was hot, dusty, and dry. We left the former camp at about 2 P.M. when the thermometer was registering 100 F and drove into Mexicali to see about our game permits, have a flat tire fixed on the Dodge, and buy provisions. As soon as we hit the irrigated area west of Mexicali, the air became very humid and the smell of alfalfa came to us. Bird life increased tremendously; doves, shrikes, burrowing owls, white egrets and herons becoming plentiful. The irrigation ditches are lined with bamboo thickets affording good cover for many bird species. Meadow larkes were abundant.
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Quest 1948 Journal 19 April 17 Cerro Prieto 30 ft 20 mi SSE Mexicali Baja Calif. Just before camping last night, Dr Benson saw an Ondatra zibethica swimming in an irrigation ditch (about 5:30 PM). Odon were seen and presumably heard gnawing during the night along the irrigation ditch. Dr. Benson caught a Macrotus californicus in an abandoned bamboo shack 50 yds from the canal and in a mesquite thicket about 10:30 last night. It was caught by a handnet while flying about within the shack. It was obviously very confused by the flashlight for it merely flew around the walls of the shack for five minutes while Dr. Benson tried to net it, not find- ing the many large cut holes of size of at a man's head or larger that would easily have permitted its escape. Five nighthawks seen flying from mountside yesterday at early dusk (sunset). Smelled a skunk while driving along a bamboo & Tamarisk thicket beside canal yesterday about 5:30 PM. A large saline pond was seen to contain about 100 Avocets late yesterday afternoon. The pond is located N.E. of the mountain and is about 300 yds long and 100 yds wide, ap- pearing about 1 in to 2 ft in depth range.
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Quast 1948 Journal 20 April 17 Cerro Prieto 30 ft 20 mi SSE Mexicali, Baja Calif. 9:15 P.M. Maximum temperature today about 1:00 P.M. was 100 F. A breeze blew all afternoon blowing quite hard around 5:00 P.M. Cerro Prieto is a volcanic cone built up of large piece of dark volcanic rock. At the top is a cone elliptical in shape of about 150 x 200 yds. The rim is from 50 to 200 ft above the cracked mud floor of the cone and very irregular in outline. It is about 200 ft at its highest point above the valley floor. The walls (slopes) of Cerro Prieto are very rough and contain very little soil if any, small amounts of soil being present on the rim with a type of bunch grass growing in scattered patches in it. Cracks and small caves + cramies are present on the outside slope and also on the inside walls of the crater. The mountain is elliptical in shape and guessed at about 5 mi diameter. The rocky slopes are bare of vegetation. Large numbers of large bats (Macrotus?) were seen flying from the mountain at 7:30 P.M. (sunset) and the smaller Pipistrellus were seen feeding low among the mesquite about 15 min later. Two small squirrels were seen feeding in sandy roadway 100 yds west north of camp
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Quast 1948 Journal 21 April 17 Cerro Prieto 30 ft 20 mi SSE Mexicali, Baja Calif. this afternoon. Dr Benson said they were probably Citellus tereticaudus from my description. Many Nighthawks hide among the mesquite lining the day trail in the sandy areas at the mountain base 100-500 yds west of camp. Cottontail signs are plentiful. shot 4 Dipsosaurus (#60,61,62,63) and one Cenuridophorus (#64) in sand at base of mountainslope between 1 and 3 P.M. All the Dipsosaurus were under or in dead brushwood on the sand within 75 feet of the igneous talus slopes except the small one which was shot on hard sand - blending in so well with the sand that I could not distinguish it from a crevic at 50 feet. I had to dig one wounded Dipsosaurus out of the soil and talus conglomerate. Birds seen in the mesquite at base of slope this afternoon were a flock of probable Gambel Quail, an Olive-sided Flycatcher, a Black-throated Grey Warbler, a small Thrasher, and a small flycatcher (Western ?). set out 110 traps tonight: 50 live traps where volcanic rock borders desert sand
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Quest 1948 Journal 22 April 17 Cerro Prieto 30 ft, 20 mi SSE Mexicali Baja Cal/ and mesquite, and 50 Museum Specials in a similar association; and 10 Schuyler traps higher in rocks. The mosquitoes are very bad at night. April 18 4:00 P.M. Have moved back to the irrigation slutch for the night in order to be cooler under the mesquite and take baths and wash our clothes. We moved from the base of Cerro Prieto about 3:00 P.M. 100 mouse traps (50 live and 50 Museum Specials) set in rocks near sand and mud flat last night caught 1 Perognathus baileyi, 5 Perognathus spinatus, ~~two Peromyscus eremicus, and 5 Perognathus penicillatus. 10 Schuyler traps set higher in rocks caught nothing. Minimum temperature last night was 67°F; Maximum (about 1:00 PM) was 96°F. The day has been sunny and clear, a nice breeze blowing from the north. We are breaking camp and heading back to Mexicali tomorrow morning. April 19 (Written in Mexicali). It was cool last night; minimum temperature being 62°F. Dr. Benson shot a Batocerus last evening, and I shot one female Pipistrellus hesperus and one female Tadarida mexicana. Dr. Benson found
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Quest 1948 Journal 23 April 19 Cerro Prieto 30ft 20mi SSW Mexicali Baja Cal. a dead Europops about fifty yards from camp near the irrigation ditch. The skull was saved and I believe measurements were taken. Are departing for Laguna Hansen this afternoon. April 20 Alaska 4400 ft Baja California 8:00 AM We had a rough trip here from Mexicali yester- day. Just after starting the grade to Alaska the International truck died and could be started only after taking out the gas bowl and cleaning the small strainer immediately above it, and then blowing through a section of the fuel line between it and the tank. The International ran fine for about a mile up the grade then died completely again. This time Murray and Dr. Benson took the whole fuel pump, line to the carburetor, and gas bowl off and cleaned the whole assembly in gasoline. In addition the line was blown in until bubbles could be heard in the gas tank. The car ran upon reassembling the fuel system upon priming with white gas through the air intake of the carburetor - long enough to take us about 50yds up the grade. The remainder of the grade (about 5 mi)
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Quest 1948 Journal 24 April 20 Alaska 4400 ft Baja California was made by priming the carburetor about eight times through the air intake. The car occasionally started after standing but usually died immediately, sounding as if it weren't getting gas. We climbed about 4,000 feet in what seemed to be about 10 miles, the road a continous grade upward and doubling back upon itself constantly until the top was reached. From the top (summit) the lights of Mexicali could easily be seen. The terrain changed from the desert association at the foot of the grade with ocotillo, cholla cactus, and ironwood to the pinon pine and scrub oaks in the pinkish boulders of the summit. This region is made up of rounded granite boulders, while the desert area was mainly fragmented rock. The canyon at the base of the grade contained water, some of it running in a small stream bordered by willows and mesquite. Evidence of flash flooding is everywhere, the stream channels being very straight and deep, surrounded by piles of large boulders. The canyon walls are highly metamorphosed and the more
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Quest 1948 Journal 25 April 20 Alaska 4400 ft Baja California resistant quartz veins stand out in places from the less resistant mother rock. Streakifications stand vertical or near to it and faulting is abundant. All slopes in the canyons are steep, usually precipitous. The road up the grade is good—better riding than that across the desert—and not too steep (second gear most of the way for the heavy-loaded International trucks). The grade road is wide enough for only one automobile except for a few spots for passing, and in good condition. Alaska is a bus stop for the Mexicali- Tijuana & Mexicali-Ensenada bus lines. A California Ground-squirrel was seen at the base of the grade near water. The temperature this morning at 6:00 A.M. was 55° F. We are camped about 1/2 mile south of Alaska on the flat summit. The sun is shining on our camp, but to the south and east are dark rain clouds, from which long streamers of rain are falling. This is a wonderful respite from the desert heat and dust. The town of Alaska (it says Alaska on the map, but the inhabitants seem
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Quest 1948 Journal 26 April 20 Alaska 4400 ft Baja California (unacquainted with the name) is an agglomeration of a dozen or so buildings along the road. On some maps, Alaska is known as "[illegible]" "El Rumorosa". Killed two Sceloporus lizards this morning and saw many more on the large granite boulders. They stand out very prominently against the light granite. Saw many Eutamias merriami this morning. April 20 Agua Hedionda 32°30'N 116°16'W Baja California Arrived here about 4:00 P.M. after leaving the Alaska camp early in the afternoon. Saw one Citellus beckyi near a ranch house on the trip and one jack Rabbit. The road was poor but entirely navigable for the trucks. The difficulty with the International truck has been solved, Dr. Benson locating a leak in the gas line and spending the late afternoon here soldering it up. We are camped on the west side of a very broad flat canyon, surrounded by the rare "Red Shank" brush. Large granite boulders project above the tops of the Red Shank in scattered groups. We are by a spring marked by four willow trees. The water is murky and green and
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Quest 1948 Journal 27 April 20 Agua N echicera 32°30'N 116°16'W Baja Calif runs into a trough sunk in a depression for cattle, a dead steer nearby probably attesting to its potability. I set out 50 live traps in the Red Blanks and nine Schuyler traps near Neelma houses in the boulders. At the time of writing I have already caught one Peromyscus man- iculatus (9:45 P.M.). The night promises to be quite cool (56°F at 8:00 PM) and dew can be felt on the equipment. April 21 Minimum temperature last night was 32°F and it remained cool through noon. The 50 live traps contained 1♀ Dipodomys agilis (#81), 1♀ Peromyscus californicus (#82) and 1♂, 2♀ Peromyscus maniculatus (#84,85,86). Nine Schuyler traps baited with dried peaches catched 1♂ Peromyscus californicus. The Schuyler traps were set beside rat houses built in the crevices in large isolated granite boulders that dot the landscape, but no wood rats were catched. The moon was almost full last night. Birds seen at spring this morning: Haret Lark, Paleolated Warbler, Ash-throated Flycatcher, Scott Oriole, Western Tanager, Calif Jay,
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Quest 1948 Journal 28 April 21 Agua Hedionda 32°30'N 116°16'W Baja California California Quail; heard the Swainson Thrush, Wren-tit, a Thrasher, Killdeer. Many loves clunked from its trough and pools in the mud. Departed for Ensenada via Tecate + Tijuana about 1:00 PM. Arrived Ensenada about 6:00 P.M. after a pleasant drive over paved roads from Tijuana to here. Last night was clear, with a full moon, a possible explanation for the scarcity of the catch. Today was clear, the sun shining brightly with clouds only in the east during the early morning. Archaeological Site: scattered between the granite boulders north and south of the spring are plentiful fragments of pottery of very hard substance, about 1/4 in thick and unglazed. Pottery color was reddish brown and dark gray. Outside surface skillfully smoothed, inside surface with moulded appearance. Two fragments of bifaced manos were found, but no evidence of metals. April 22 Ensenada Baja California 9:30 A.M. Are waiting for repairs on the International truck. The overload spring in the left rear side has slipped backward and out of line.
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Quadrant 1948 Journal 29 April 22 Ensenada Baja California We camped last night by the shores of the bay approx. 1/2 mi W of Ensenada. Minimum temperature last night was 55° F, the sky being overcast all night. The sky was clear at 6:00 AM, becoming overcast again at 8:00 AM. April 23 San Fernando Mission 1500 ft Baja California 8:30 P.M. Camped last night at San Quintin 500 yds from the bay after eating dinner at Santo Domingo at the Gomez place. A new highway is under construction from Santo Tomas to San Quintin where it leaves off and the old road takes over again. Saw a Marsh Hawk this side (south) of Santo Tomas. None of the old buildings at San Quintin are standing and all that remains of the wharf are the small pilings and vertical cross pieces. We arrived after dark and set no traps. Minimum temperature last night was 54° F, a strong wind blowing all night with heavy overcast. The road runs over a coastal plain from Santo Tomas to Rosario characterized by Agave, Pitays, and Cholla cacti and dwarf buckeyes. All the plants are low, few exceeding 3 feet in height. It was
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Quest 1948 Journal 30 April 23 San Fernando Mission 1500 ft Bays California very cold and windy during the trip. At Rosario the road turns inland and climbs incessantly to here, some of the hills being so steep that low gear was needed. As we climbed I noticed the vegetation change to the curious Cirio trees and Cardon cacti mixed in with barrel cactus and Pitaya. The barrel cactus and agave are blooming now. We stopped at a turquoise mine about 13 miles from here and Dr Benson caught a Choeronycteris mexicana with a hand net. 4 About 12 shell middens were seen along the road between San Quentin and Rosario We are camped about 100 yds south of Mission San Fernando on the road lead- ing to it. At present there is a fine stream running into the meadow below it, and three houses near it. The stream flows into large clear pools in the meadow and cattle graze in among the bunch grass and tules. At present 9:00 A.M. a chorus of Hyla notes are reaching our ears from the meadow although there is a pronounced chill to the air.
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Quest 1948 Journal 31 April 23 San Fernando Mission 1500, Baja California. Let out 50 Museum Special traps through the bunch grass and along the Tules and mesquite. The moon is about full tonight, the sky is clear and the wind blowing in gusts.. Nothing remains of the old mission except several walls, badly weathered. April 24 7:00 AM Minimum Temperature last night was 32° F. 50 Museum Specials baited with walnut and set in bunch grass and along stream and mesquite, and Tules caught 3 Peromyscus maniculatus and 3 Reithrodontomyx. 11:15 A.M. The day has turned out to be warm, and sunny with a breeze blowing from the west. Birds seen and heard: California Gull, Coot, Violet-green Heron, Sila Woodpecker, a small blue Heron with an orange throat, Blackbird, Chat, Killdeer. The mission is located on the north side of a canyon running E W, and situated about 100 yds from the marsh at the canyon bottom. Another building in the same state of repair is located about 1000 yds W in the canyon it being on the south side. I assume it too is part of the old mission.
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Quest 1948 Journal 32 April 24 At San Fernando Mission 1500 ft. Baja California The canyon slopes are steeper on the south side at this part and are covered with frutia mainly with a few scattered Cirio trees. The north slopes are of less gradient and contain little Cirio but much Cardony, Cholla and Pitaya mixed in with the Frutia. The soil is of a conglomerate of fragmented rock and a little dirt. The marsh at the canyon bottom is approx. 500 yds wide. April 25 12 1/2 mi by road south of El Marmol 2200 ft Baja Calif Minimum temperature last night was 43°F. Our camp is located in country full of large granite boulders, and fine gravel washes. The most prominent vegetation is the large Cardony cacti and the grotesque Cirio trees. Northwest and west of us are several table mountains, probably of lava, and of a dark color. Scattered hills of the granite boulders also occur. Other plants include the Cholla, Mesquite, Pitaya and Barrel cactus. The landscape is weird and beautiful, some of the granite boulders having odd cavities presumably worn by wind and sand. A Red-tailed Hawk has a nest in the fork of a Cirio near here. There are wood
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Quast 1948 Journal 33 April 25 1/2 mile road south of El Mamo? 2200 ft Baja Calif. rat signs among the boulders. Shot two Brush Rabbits this morning, but did not put up the specimens, one being immature, the other being badly mutilated. We fried them for breakfast. Dr. Benson put up a immature specimen he shot. I set out 50 live traps last night and could find only 49 of them this morning. Caught were 1 Dipodomys agilis, 2 Dipodomys ericemi, and 1 Peromyscus fallor. No bats were seen at dusk last night, but one was heard after dark. April 25 Mina La Fortuna 2350 ft 2 mi Laguna Seca Chapala Baja Calif. Arrived here at dusk after a very rocky, bumpy ride from our last camp. We left the previous location about 1:00 P.M. and passed through boulder country and then lower country on our trip. Very tall palms were present near Catavina and also at and near houses south of it. The Cardonier and Cirio thinned with the disappearance of the boulders and gave way to barrel cactus and DeTillo in its latter half of the days trip. Cirio can still be seen however on the mountainsides. Seen during the trip were two Antelope Chipmunks and one Red-tailed hawk.
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Quest 1948 Journal 34 April 25 Mina La Fortuna 2350 ft. 2 mi. N Laguna Secachapala, Baja California. Are now camped at the stamp mill section of the old La Fortuna mine in the foothills rising from the north end of Laguna Secachapala. The air is still at the time of writing and the temperature 58°F (9:30 P.M.). A cool breeze was noticed from 3:00 P.M. and just died down. The sky is clear and not a cloud has been seen all day. The terrain here is of highly metamorphic rock, that on the surface being reddish. The hills are sparsely vegetated, short shrubs, cholla cactus and occasional ocotillo noticed. This dry lake bed is the third of a series of dry lake beds traversed since Catavina. The lake beds seem to be descending this one being lower than the previous two, etc. The second lake bed contained a spectacular mountain of huge granite boulders in its center. No water available since Catavina. April 26 12:30 P.M. Had a bat hunt in the mine digging last night from 10:30 to 11:30 and this morning at 6:30. Caught by nets were 8 Antrozous and 8 Choeronycteris mexicana. Bats were caught in shafts and pockets leading off stopes in the
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Quast 1948 Journal 35 April 26 Mina La Fortuna 2350 ft 2 mi N Laguna de Chapelle Baja Califf. mine. The slopes are inclined at an angle of approx 45° and going is difficult in some places. Also seen in the mine were the open nests of Wood Rat surrounded by piles of Cholla spines. The mine has been in disuse for many years as evidenced by badly rusted equipment and the remains of a stamping mill. We are camped by the mine, about 50 yds north of two dilapidated stone houses and beside the rusted boiler of the stamping mill. Below us stretches the dry lake bed with its short stubby bushes around its edge. Ocotillo and Barrel cactus are blooming at this time. Minimum temperature last night was 49°F; the temperature now (12:35 P.M.) is 79°F. A strong breeze is blowing from the south. Shot a Vito Stanisburiana (#98) this morning in the lighted portions of the mine digging. Quail can be heard at this time calling from the scrub brush and lava slopes below us. April 27 ? Mi South Punta Prieta Baja Calif. Traveled yesterday through some of the dry lake bed series, each succeeding one lower than the former. Vegetation change about half- way between the two spots to shrubs,
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Quart 1949 Journal 36 April 27 7 Mi South of Punta Prieta Baja California Stouter Cirios, Elephantaphrium, and Yucca. Ran across a traveler that we had met on the dry lake bed previous to Laguna Secacayala. He had wanted water and a push out of the sand then yesterday he wanted a tow to Punta Prieta as his moto had failed. Towed him 3 1/2 mile to Punta Prieta arriving there about 6:00 P.M. yesterday. Seen yesterday afternoon from the road: 3 Redtail Hawks that were of very dark coloration, 2 Jackrabbits, 4 White-wing doves, 1 Rattlesnake (shot by Dr Benson), 2 Horn toads (Benson + Tevis), + 4 Ravens in pairs. A pleasant drive yesterday with a cool breeze. Minimum temperature last night was 44 F - it was 56 F at 7:00 AM, with a high fog clearing about 8: A.M. Heard coyotes last night, and saw one within 200 ft of camp. April 28 30 mi S.F. Mesquite, 600 ft Baja California 1:45 P.M. An interesting drive from Punta Prieta yesterday. The topography and vegetation differs north and south of Miller's Landing. South of this place we noticed an almost complete absence
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Quest 1948 Journal 37 April 28, 30 mls S E Mesquital, 600ft. Baja California. of Cirios, those present being short and stubby. The Ocotillo here is squat and highly branched, possibly a different species, and covered with what looks like Spanish Moss and is called Orchilla by Tevis. The Orchilla parasitizes everything, including the spines of the barrel cactus and the axils of the Elephanthurius. Yucca is common here, and the vegetation much more dense than but few of the regions around Punta Prieta. Found a mushroom yesterday afternoon (Coprinus comatus) that measured 13 inches from top of pileus to base of stem. The cap was as yet sealed and it was in a highly desiccated condition. Weight of specimen was 112.7 grams. Numerous lichens occur in this vicinity on rocks. The washes of the hill S.W. of Mesquital appear green because of a lichen, and isolated rocks were noticed that had a brilliant red lichen on their tops. Surrounding us are hills topped with lava cap-rock, presumably the remains of the lava plateau south-east of here. Another interesting plant parasite that occurs in this region or mainly Ocotillo looks like a spherical bird's nest and is about 8 inches in diameter.
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Quest 1948 Journal 38 April 28, 30 mi S.E. Mesquit at 600 ft Baja California. The soil is coarse gravel in its rises and silt and sand in the heavily vegetated washes. Minimum temperature last night was 47°F, maximum was 90°F (about 1:00 P.M.). It was very foggy this morning and cleared about 9:00 A.M. It was a light fog and did not interfere with visibility. We are about 8 miles direct S.W. of Calmalli. 49 traps set last night in sand and silt among heavy vegetation (Yucca, Cholla, Scotila, and brush) caught 2 Dipodomys merriami. Two traps were moved approx. 20 yards, presumably by Coyotes. Tevis had one trap lost and another badly battered (live traps) by Coyote. Diplolemmus bachmani and Lepus calif- orius abound in the heavy vegetation of the washes. Bats were heard last night, but not seen at dusk. Dr. Benson shot a California quail from a flock of about 20 yesterday. Coturnix tordeau leucurus are common among the heavy vegetation. Tevis shot a California Jay this afternoon and a rattlesnake was shot by Dr.
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Quast 1948 Journal 39 April 28 30 mi S.E. Mesquital 600 ft. Baja California Benson and a Horned Toad captured by myself yesterday afternoon. Shell mounds are abundant between Punta Prieta and Mesquital. April 29 Minimum last night was 50° F. No traps set. April 29 Mission San Ignacio 500 ft. Baja California Arrived here about 7:00 P.M. after a very rough and rocky trip from our previous camp. A change in the topography and vegetation occurred a few miles south of El Arco. The dense grouping of cactus, creosot, etc stopped with the occurrence of the stable sand and silt soil and the vegetation became scant when we went beyond El Arco. South of that point the road passes through very rocky land with hills topped with lava cap rock. Beyond that we went through desert with shifting sand and very little vegetation. The Cirios stopped completely at El Arco. The sand continued to a point called Los Angeles Coral where we started to climb onto the lava plateau and San Ignacio. The lava plateau was with scant vegetation and the Cardones became the outstanding plants – even they were yellow and appeared diseased, and I noticed a high percentage of dead ones.
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Quest 1948 Journal 40 April 29 Mission San Ignacio 500 ft Baja California something not seen previously in the north. The road became bad and was composed of small boulders entirely in some places. The terrain covered today can be divided into three regions: one, the fertile, heavy vegetation before El Arco; two, the shifting sand region to Los Angeles Canal with very sparse vegetation, mostly creosote brush and a few cardons; and then, the arid lava boulder region to San Ignacio with creosote (sparse) and a few diseased and dead Cardones. The road travels over what appears to be eroded lava plateau material, the intact lava cap rock and mountains being visible to the east during the whole day. The mine at El Arco has been in disuse for a few years, but all the machinery and buildings are still standing, some being badly in need of repair. Water has filled the deep portions of its shaft (below approx 150 ft of its surface), and we explored the diggings on the intervening level for bats, but none were found. Dr. Benson caught two Myotis volans that had been hiding in the thatched palm-fond roof of a dilapidated adobe
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Quest 1948 Journal 41 April 29 Mission San Ignacio 500 miles from home on trip to Baja California house. Seen near the mine were two White-winged Doves, a Callisaurus, and a small Gambelia lizard. Two Horned Toads and a large Gambelia lizard and a Race-runner were procured by Tevis within 10 miles south of El Arco in a sandy region with scattered creosote and cacti and Dr. Benson shot several Citellus leucurus in that region. A Red-tailed hawk [lighter than those] of the Laguna de Achapalla area was seen in the eroded lava-plateau region north of San Ignacio and also one Citellus leucurus. American Ravens are common around El Arco, also jackrab- bites and Brush-rabbits. San Ignacio is a True oasis - the kind that is written of in stories of the Sahara. One drops from the hot, dry, rocky, eroded lava region into a small area heavy with palms and vineyards. The mission appears to your right on the road beyond the palms and looks very much like a mosque. Water appears to be abundant here.
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Quart 1948 Journal 42 April 29 Mission San deagrio 500 Baza California. We are staying in one of the rooms of buildings attached on the east side to the old mission. A few troops are gar- isoned in the west wing of the building. At least several hundred Tadanda mice roost in the attics and stone niches of the mission. We caught an estimated 50 in hand nets from the attic and doorways of the mission & attached buildings this evening while the crowd of kid and townspeople watched and shouted whenever we made a haul. Murray climbed up on a ladder to a small opening in the stone wall and got a netful of Tadanda after poking into the cavity inside with a stick. Other bats that were disturbed from their roost flew in a large swarm within the mission proper, suckling around the dome and hanging on the altar. At nine P.M. the bats were still flying about within the mission. Dr. Benson and Murray caught a canyon wren in one of the stone pumice in back of the mission. It is probably the one that could be heard before dark singing from the corners and walls of
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Quest 1948 Journal 43 April 29 Mission San Ignacio 500 ft. Baja California. the old mission. In another room adjoining it and a neighboring room 3 Macrotus were caught by Dr. Benson [10:15 P.M.]. The mission is very well built and in a good state of repair, and in use at present. April 30 9:30 P.M. Minimum temperature last night was 53° F. 13 Myotis yumanensis were captured this afternoon in an unused stone storoom east of the mission, and three Macrotus californicus and one Tadarida mexicana were seen this evening in the unused rooms adjoining the mission (see species accounts). The Canyon wren captured last night escaped late this morning, but not after another was heard and seen on the mission walls. San Ignacio is surrounded by volcanic rock in a layer over what appears to be sandstone or limestone. May 1 Minimum temperature last night was 58° F. Bats seen last night before 11:00 P.M. in mission rooms have been Myotis yumanensis, Tadarida mexicana, Antrozous, and Macrotus californicus.
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Quast 1948 Journal 44 May 1 Umi SSE Santa Rosalia Sea Level Baja California Arrived here about 6:00 P.M. after the equivalent of a 3 hours trip from San Ignacio. We passed by the Tres Virgenes Volcanoes and fresh-looking lava-flows that were probably forced out when one of the mountains was said to erupt, about 1746. Seen on the trip from San Ignacio to Santa Rosalia were a California Jay, a Red-tailed Hawk and an Antelope Ground-squirrel. A Frigate bird was seen by Trvis just before we reached Santa Rosalia. We are camped by the old town of San Lucus, about 200yds east of the road and near a small estero where a boat was being built. A few mangroves are growing around the shore and may also be seen growing on a long sand spit south of us. San Marcos Island is East of us. Several small bats were seen feeding after sundown (7:30 P.M.) and one after darks (8:00 PM). Before we left San Ignacio the priest said that there are pictographs in red pigment in caves about 1 Km. north of the old mission. May 2 Mulege 25 ft Baja California Arrived here at noon after leaving previous camp about 8:30 A.M.
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Quast 1948 Journal 45 May 2 Mulege 25± F Baja California Minimum temperature last night at our camp 11 mi SSE Santa Rosalia was 57° F. Birds seen near there included Seawallows (flying over th estero), an Osprey, and a Loggerhead Shrike. One Antelope Ground-squirrel was seen 1 mile south of this. 6:00 P.M. We are comfortably camped in one of the rooms of the Government building in Mulege. A spring was broken in the Dodge truck and is being repaired at present. Just after we arrived at this town (12:00 A.M.-noon) The four of us caught 2 S and 20 F Tadarida mexicana in the ceiling between a 2 x 12 and the wall (see species account). At 5:00 P.M. we caught approx 40 Myotis yumanensis in a crevice between 2 x 12's that support a roof over a large porch in the back of this building (see species account). Mulege is placed in an arroyo about one mile from the sea. It is very similar to San Ignacio in its setting in the volcanic mountains and its many palm trees and pond in the center. There is a government prison up on the hill and xxxx we are placed directly beneath it. The mission has been rejuvenated and its neat, white appearance is probably nothing like the old building. No bats
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Quest 1948 Journal 46 May 2 Mulege 25 ft Baja California o signs of them were seen in the mission, about 20 Frigate birds were seen soaring and diving over the pond bordered with palm trees below the mission. One of the local inhabitants told us today that everybody here gets malaria attacks in the summertime. May 3 Minimum temperature last night was 56 F. Two Myctis yumanensis were caught last night by the jail up on the hill, and a Tadarida mexicana flew into the room about 9:00 P.M. last evening. Eile Woodpecker heard at 9:30 and 10:00 AM of Frigate birds 4:30 PM. Saw two groups of about five individuals each in vicinity of large pond below the mission. The second group were evidently bathing, for they would dive down and grace the surface of the water one after another. All they seemed to do was drag their feet in the water. The first group was flying high in the air away from the pond and the birds would dive about 25 feet in the air with wings beat, shaking themselves while in the dive. They possibly were drying themselves after their fresh-water bath. Saw about 5 Calisaurus along the creek below the dam. They appeared darker than
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Quart 1948 Journal 47 May 3 Mulege 25 ft Baja California, it's ones I have seen north of here. Elvis shot several of them for specimens. Black Phoebes are common around the artificial dam below the mission, three being seen. There are about a dozen Coots in the pond above the dam and a [illegible] woodpecker was heard in the vicinity. There are fish about 8 inches long in the water above the dam and smaller ones below. The pond below the mission is formed by a long cement and rock dam that is about fifteen feet high. Many tule grow in the water and it is bordered by low grass and many palm trees. The palm trees appear to extend about 2 miles up the canyon from the town proper. Water arises out of the ground below- the dam as is evidenced that by more water flowing 100 yards below the dam than nearer it. About five American Vultures roost on a large rock on the west end of town, 10:00 P.M. Noticed many large cockroaches in the latrine in back of the building so decided to spray them with an Aerosol bomb. They were thoroughly sprayed at 8:30 P.M. and immediately became greatly agitated, crawling over the seat, floor, walls and ceiling at a
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Quast 1948 Journal 48 May 3 Mullege 25°F Baja California great and eccentric rate of speed. At 9:00 P.M. I returned to find thrashing cockroaches 20 feet from the latrine and saw them climbing the walls of the building outside. The latrine walls, floor, and ceiling was one moving mass of the insects and they raised a great commotion as they rattled over the wood and dropped from the walls and ceiling. Two of us, regretfully, had to use the latrine and I guarantee that it is one of the most eerie and unusual ex- periences that one can undergo. At 10:00 P.M. they are thrashing about 50 feet from the latrine, a few coming into the room in which we are working. The commotion in the latrine is still terrific. May 4 Minimum temperature last night was 55°F. Caught last night in Museum special traps by Dr. Benson and Tevis were 1 ♂ Dipodomys merriami and 5 ♂ Perognathus spinatus. Murray had 50 traps out too but could not catch anything although several of his traps were sprung. Traps were set mainly in the lava rock fragments; the Dipodomys was captured in sand. ↑ Visited a bat cave about 1/2 mile up the canyon from the mission this afternoon. It is a natural cave that extends on an
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Quest 1948 Journal 49 May 4 Mulege 25° ±, Baja California incline upward for about 200 feet through three constrictions and three broader cavities. The slope was about 20 or 30 degrees and at one place it is necessary to lie flat and pull yourself through the fine dust that had accumulated in the cave. The cave opening is hidden from the valley floor by a lip of fragmented rock. Within the cave there are many side passages of small size leading to small pockets. The whole cave is filled with very fine dust. The bats were roosting in a second widening of the cave about 150 feet from the opening and considerably higher than the rest of the cave. There were many bats in the cave of which I netted four (1♂ Mormoops megacephala and 3♀ Macrotus californicus). Dr. Benson caught 10 Mormoops (4♂, 6♀) and 20 Macrotus (7♂, 13♀). Dr. Benson also caught 4 (2♀ ad, 1♂, 1♀ juv) Leptonycteris (?). The three types of bats were the only ones noticed or caught. It has been decided that the locality of the cave is ¼ mi south of the mission at 100 feet. May 5 Bahia Concepcion 13 mi SE Mulege Baja California Minimum temperature here last night was 68°F, Maximum today was 92°F. Today is clear and warm, the light being intense on the weather.
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August 1948 Journal 50 May 5 Bahia Concepcion 13 mi S.E. Mulege, Baja California. shell beach in front of camp. We are camped in several wave-worn caverns by the beach of a small bay connected to Bahia Concepcion (Conception Bay). The drive from Mulege yesterday took about an hour over fairly good road. Seen along the trip were: Vermilion Flycatcher and an Osprey, one Jack Rabbit and an Antelope Ground Squirrel. 49 live traps set in rocks above sand flat east of camp last night caught 4 Perognathus spinatus and two Peromyscus cremicus. Caught by others in addition were Neotoma lepida and Phoenathus arnensis and one Dipodomys merriami. Conception Bay is surrounded by high hills of lava rock. Mangroves grow around the esteros and Cardone, Pitaya, Mesquite, Cholla, and Creosote in the sandy wastes. Elephantaphrium is found in the lava rock of the steep hills. Mounds of shells are almost continuous along the many beaches of the bay's perimeter. Birds seen today included one Osprey, two Oyster-catchers (One shot by Dr. Benson) and a Frigate Bird. The water team will fish, large and small, but so far Dr. Beman
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Quest 1948 Journal 51 May 5 Bahia Concepcion 13mi S.F. Muley's Baja California and I have been unable to look any with our fishing outfits. Dr. Benson shot a Myotis californicus last evening at dusk. Caught a small Rattlesnake about 5 P.M. that had probably been quietly lying curled in the sand in a cavern 20 feet from Travis who was shelling clams. The snake did not move when approached and did not rattle when picked up with a shovel and moved into the open. It started crawling back to the rocks when placed on the ground and it was stopped by holding it down with the shovel. It then began rattling and attempting to bite the steel blade. Dr. Benson killed it by breaking its neck and its stomach contained one male Perognathus spinatus. The snake is specimen no 138; the Perognathus skull, no. 139. May 6 3:30 P.M. Minimum temp. last night was 69° Maximum today was 86°F. At present the temp- erature is 85°. So far the day has been warm, clear and windless, but now a slight breeze is starting. 49 live traps set last night in sandy area behind shell beach and below rocks in which traps were set previous night caught: 6♂, 1♀ Perognathus arenarius; 1 ♀ Perognathus baylei,
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Quest 1948 Journal 52 May 6 Bahia Concepcion 13 mi SE Mulege Baja California and one Peromyscus eremicus. Traps were set beneath or near large bushes. Birds seen so far today are 1 Pelican, 5 or 6 Frigate Birds, 2 Leaulls, and several Ospreys. The Frigate Birds were feeding together about 1/2 mile offshore. May 7 Minimum last night was 71°, maximum Today was 92° F. 49 live traps baited with bird seed and set last night in sandy area in back of beach N.E. of camp caught 1 ? Dipodomys merriami, 1 ? Perognathus baylei, 2 ? 1? Perognathus spinatus, and 1 ? 2 ? Perognathus arenarius. Traps were set among large "Mangle Dulce" and Creosote bushes in association with Cardone, Cholla, Pitaya, Palo Verde, Mesquite, and Elephantaphrium. The yield was low last night possibly because of a herd of cattle that unexpectedly bedded down there. One part of the sandy area is a dried salt marsh, and sand and salt marsh are board- ered by talus (lava + conglomerate rock) and alluvial material. Above rise rocky hills with mesquite and numerous small ceves. S.W. of our camp is a estero bordered by mangroves and a salt marsh. Clams
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Quest 1948 Journal 53 May 7 Bahia Concepcion 13 mi SE Mulege Baja Calif. were dug from the estero yesterday by Dr. Benson and Murray and made a fine stew. Birds seen this morning were an Osprey, several Frigate Birds and Pelicans diving for fish at the entrance to the bay, and two Osprey-catchers. A fisherman sold us several large Conchs obtained from the bay and we had them for lunch. Left camp about 2:00 P.M. May 7 Rancho Cadeje SW end Bahia Concepcion Baja Calif. Arrived here about 5:30 PM after helping repair a blowout on the International Truck. Seen on the way here were 4 Brown Pelicans and a Citellus beckeyi that was hopping across boulders above the road about half way down the bay. The Pelicans were flying in formation about 5 feet above the water. They were arranged in a straight line and would flap their wings together and then all glide together. The rear Pelican evidently got his cues from the previous bird for he lagged considerably in his flapping and gliding. Murray shot a Pipistellus hesperus this evening at dusk. About eight were seen flying singly and feeding around the
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Quest 1948 Journal 54 May 7 Rancho Cadeje, S.W. end Bahia Concepcion Bay Calif. "Mangle Dulce" and Mesquite that grows thickly around our camp. A larger bat was noticed flying at dusk - about the size of a Vadarida mexicana, but was not obtained either. At the time of writing (9:15 PM) bats may be heard "chipping" in their flight overhead. May 8 Same Location. 6:30 A.M. 49 traps set on rocky hillside on W side road caught 28 Perognathus spinatus. Traps were baited with bird seed and set among an association of Elephantophrium, Mesquite, Barrel Cactus, Pitaya in an area containing cattle. The hills are sparsely vegetated and steep being composed mostly of mother-rock and talus. Minimum temperature last night was 66°F. We are about 300 yards north of Rancho Cadeje proper and about 50 feet from the ocean. The wind blew in strong gusts all last night & tho sky was overcast. Clear this morning with a mild breeze. Tevis caught one Brownpussie Perognathus barleji. No Brownpussies were caught by the group last night. Seen this morning - several White-winged Doves, a Sils Woodpecker, some Quail, and a flock of about 30 Pelicans flying very high
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Quest 1948 Journal 55 May 8 Rancho Cadeje, S.W. end Bahia Concepcion Baja Calif. and in formation May 8 San Jose de Comondua 700 ft. Baja California Arrived here about 5 P.M. after a very rough trip from our previous camp. The road led over pure lava country, the terrain usually being mountain or hills of lava boulders over which the road wound. The bad road was all on this side of Camipole, it being fairly easy going along the shores of Bahia Concepcion. Between Bahia Concepcion and Camipole the numerous washes are covered with Organ-pipe cactus, Cardone, Palo Verde, Palo Blanco, and Creosote. Just past Camipole the road leads through a wash with large pools of water and very large mesquite, climbing afterward into the very rough lava country and steep rough grades. Growing in the lava boulders were a few Palo Verde (appearing different than the northern ones), Cardone, and Petays. Large areas are passed about 10 miles north of Comondua in which the terrain is virtually paved with large flat boulders for miles around. Lava flows, and old volcanic cores are evident everywhere. The rough lava country continues to Comondua where the road drops
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Quest 1948 Journal 56 May 8 San Jose de Comondu 700 ft. Baja California ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ down into a deep arroyo with a narrow strip of palm tree and fields growing down its center. Seen in the lava was one Citellus leucurus and one Red-Tailed Hawk. White-winged Doves were common along the shores of Bahia Concepcion May 9 Same Location. Minimum temp. last night was 54°F. Temperature at time of writing (11:00 A.M.) is 76°F. Saw three Citellus atricapillus this morning in rocks near reading road leading into town from the north. Dr. Benam shot one from a different location. Shot one Streptosaurus and one Cnemido- sphorous this morning in N.W. side of arroyo. The Streptosaurus (#160) was shot while squatting motionless against the side of a large boulder in a boulder pile beneath cliffs N.W. of town. Several others were wounded, but they could not be recovered from the rock spaces. The Cnemidophorus was one of many seen in the boarder zone between large lava boulders and the sand of the arroyo floor - again N.W. of town. There are pictographs drawn with a red pigment on the cliff faces N.W. of town. Dr. Benam shot a Pipistrellus lepusus that
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Quast 1948 Journal 55 May 9 San Jose de Comonda 700 ft Baja California was flying down the main street last evening. 6:00 A.M; just set out 49 live traps along running stream at arroyo boton. The water course is narrow, but th stream is flowing rapidly. Surrounding it are palm trees, bermuda grass, composite plants in bloom, and cultivated fields containing mostly fig tree and corn. The bottom land is not rocky, being fully cleared, and its soil is damp and soggy in various places. Some of the black figs are ripe. Searched for bats this afternoon in small caves located in cliff faces about 300 yards E. of the mission. No bats were found, although droppings from their night hangings were evident in a number of places. Found an arrowhead made out of obsidian in the entrance to one of the caves. Caves and crevices are abundant in the cliff faces, possibly explaining the lack of bat roosts in the town. Today was sunny and fairly cool - one of the local residents says that it is about the same in July. May/10 Same Location. Minimum temp. last night was 56° F.
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Quast 1948 Journal 58 May 10 San Jose de Comondú, 700 ft, Baja California. Visited small caves about 3/4 mile SW of town last night hoping to obtain bats that would hang in them temporarily but obtained none although several were heard. Caught one Sacco (see species account + Catalog) last night on boulders beneath the caves. The caves were small and the openings large and high, making them probable night-hanging places for bats. Lost one live trap that was set by a trail last night (description of trap location under May 9). The 48 remaining traps caught 4♀ Peromyscus eremicus, none containing embryos. Shot bats last evening from 5:15 to when it was too dark to shoot (7:45). Pipistrellus hesperus were flying at 5:15 P.M. and Eptesicus fuscus appeared about 15 minutes later. Both were obtained by the group, and I obtained two of each. The bats were feeding among the tall palm trees of the arroyo, just west of town. May 11 Pozo Grande 25+ ft 25°46'N, 112°02'W Baja California Shot two Eptesicus fuscus flying over water hole about 200 yards west of town last night. Others of the group obtained Myotis yumanensis (see species account).
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Quart 1948 Journal 59 May 11 Pozo Grande 25° ft 25°46' N 112°02' W Baja California Pozo-Grande is a grouping of about eight delapidated houses near the road crossing th Magdelena Plain. Immediately east of the houses and near the water hole 200 yards west of th houses are rocks and strata containing a very high concentration of shells and other fossils. A few willows grow around the pond and palms east of it near town. The sur- rounding flat countryside contains Opuntia, Mesquite, and Cardone, We were told that the water hole contains water all year around and that it is frequented by many bats in the evening - especially in the summertime. Caught one Toad (#170) last evening hopping in soft sand 25 feet above the pond. The pond contains one Eube and a few fish. Many ducks (Baldpalo?) frequent th pond at this time of year, about 50 attempting to land here at dusk. The road from Comondu to here is in very good condition compared to the road north of Comonda. Many sea turtles are caught by the residents in the ocean west of here. Minimum temperature last night (Pozo Grande) was 47° F. The night was quite damp and
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Quest 1948 Journal 60 May 11 Pozo Grande 25° ft 25°46'N 112°02'W Baja California what appeared to be a light radiation fog this morning. The pond is frequented by many Barn Swallows and Olive-green Swallows. About five Citellus atricapillus were seen along the road just as the arroyo started opening into the Magdalena Plain. May 12 24.3 mi by road SE of El Refugio 100° ft 24°33'N 111°35'W Baja Calif Minimum last night was 53° 47 live traps set on plain among Colli Pitiaya, and Cardones caught nothing. Dipodomys signs were apparent everywhere, however. Saw two bats flying at dusk last night Perognathus arenarius ab and Baileyi and Dipodomys merriami and agilis were caught by Dr. Benson. A very desolate landscape - a rolling plain with dirty plants growing in the dust and sand. Pitiaya "dulce" and "agua", Cardones, Opuntia cholla and Zumboi growing quite densely with intervening circular patches where ponds evidently stood during heavy rains. Most of the specimens were caught on the periphery of these circular mud flats devoid of vegetation - my traps were set in the denser growth and caught nothing. May 13 Santa Ana Arroyo de Los Viejos 25° ft 24°03'N 110°8'W Baja Calif Stopped here overnight for breakfast and dinner.
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Quest 1948 Journal 61 May 13 Santa Ana Arroyo de Los Viejos, 25 ft, 24°03'N, 110°58'W Baja California The group shot and netted 7 bats last evening at dusk. The bats were flying about palm and "Mangle Dulce" trees adjoining a small pond into which water is dumped for cattle. All the bats were Myotis californicus of which I shot one male. I saw no bats that I could identify as other kinds than above. Minimum temperature last night was 51°F, the night being very clear and still with a light dew in the morning. A breeze arises about 10 A.M. each morning and dies about 5 in the afternoon. Large abalones and oysters are obtainable about 5 miles north of here. Saw several Antelope Ground Squirrels along road yesterday. May 14 4 miles north of La Paz, Sea Level, Baja California We camped in a salt flat in back of beach north about 3 miles east of La Paz. 1/2 mile W. of us is an oil storage depot and wharf. Minimum temperature two last night was 67°F, noticeably warmer than Santa Ana. The trip from Santa Ana was an easy one taking only three hours. The first 2/3 of the trip was a gradual climb over the plain to the low summit before La Paz. The vegetation was typical of the plain region and appeared very dusty and dry. One Antelope Ground Squirrel
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Quart 1948 Journal 62 May 14 4 mile north of La Paz sea level Baja California was seen. The last third of the trip was a quick descent to the plain around La Paz. The road over the whole stretch is good, but dusty and hot. All of the roads, including this one, south of San Quintin have been but two ruts over the desert. Speed of travel is determined by how many bumps per second you think the car will stand or how fast the automobile will pull through the sand. But -- ablely the only dangerous sandy stretch is that just north of Santa Ana where the road goes near sand dunes of the Pacific Ocean. Here our truck had difficulty navigating the sand while going down hill and will undoubtedly have a difficult time pulling uphill through the sand on the way back. Truck drivers that travel that route usually drive over that section early in the morning when the sand is damp and heavy from the nightly fog. Shot one Cnemidophorus hyperythus this morning at about 10:30. Lizard was shot beneath a low dead woody bush near Pitaya agria and Lumboi at point where rocky hillside meets the salt flat on which we are camped (Specimen no. 173). Shot two Uta stansburiana this afternoon
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Quast 1948 Journal 63 May 14 miles N of La Paz, Sea Level, Baja California (174,176) and one Citellus leucurus in the rocks east of camp. The Citellus was obtained at 4:00 P.M. (#175). The day was very warm with a good breeze. Absolutely clear sky and temperature (max.) of 101°F in the shade under truck. Set out 47 traps in hillside among Cardone, Limboi, Pitaya agria, Opuntia cholla and Prickley Pear (plus Eriophium, Creosote and Ironwood and other shrubs). Hillside composed of fragmented pink porous lava rock over soil and of low gradient. 5 Schuyler sets placed along live trap line in likely looking places for Wood Rats. The vegetation gets denser and taller as one approaches the suggestion of a cape rock formation at the top of the low hills east of camp. Many pocket-mouse workings are visible higher up on the hill - much more common than on lower portions. Larger boulders are present up there with more soil and less slope. May 15 Same location. The 47 live traps set in lava rock fragments on hills east of camp caught 1♀,3♂ Peromyscus eremicus (#178-181 incl) and one ♀ Perognathus spinatus #182. Five Schuyler traps caught one Neotoma leucodon (#179)
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Quast 1948 Journal 64 May 15 4 miles N of La Paz, Sea Level, Baja California Minimum Temperature last night was 63°F, maximum today of 103°F. At 7:30 this afternoon almost had our two tents carried away by a small whirlwind. Looked for bats flying near camp from sunset to dark this evening, but saw none. May 16 Same location. Minimum temperature last night was 68°F. A strong steady wind started blowing from the south at sunset with clouds in the west, probably accounting for the higher temperatures. I have noticed that the nights seem to be coldest in this region when the air is still. 47 live traps set in same region as the night before last yielded 1♀ Peromyscus eremicus (#183) and 1♂ Procyonax spinetus (#184). The traps ran vertically up the rocky hill east of camp and the two mice were caught about half way up the slope. About four mice were caught by Dr. Benson, Murray, and Lewis together. 4 Sherman sets caught nothing. A Frigate Bird and an Osprey were seen at sunset yesterday. American Vultures are common here as elsewhere on the peninsulas. Left this location about 10:00 A.M. for points south of La Paz.
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Quest 1948 Journal 65 May 17 Triunfo, 1700 ft. Baja California Arrived here about 2:00 P.M. yesterday after a very hot drive from La Paz. Crossed the plain south of La Paz in the heat of mid day and noticed many new trees, shrubs, and cactus not seen north of La Paz. Triunfo is what remains of a mining town apparently quite elaborate at one time but now made up to a large extent of ruined buildings. The town is up an arroyo that runs out into the plain. The group obtained about 70 Tadarida mexicana, several Eptesicus and a Myotis velifer from the supports of the ceiling of a deserted building in the center of town. The bats were hanging between double 2x12 supports in the second floor ceiling. I put up some of the specimens. Shot two Pipistrellus hesperus last evening at dusk. Noticed that the Pipistrellus came out when the sun had disappeared behind the hill and flew for about half an hour, becom- ing more scarce the later it got. Saw other, larger, bats flying about 15 minutes after the appearance of the Pipistrellus - probably Eptesicus fuscus and Tadarida mexicana. One Eptesicus fuscus was shot by Dr. Brown at dark. The larger bats fly quite high when first seen but fly closer to the trees and shrubs on the ground as darkness increases.
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Quest 1948 Journal 66 May 17 Triumph 1200 ft Baja California Minimum temperature last night was 59° F, maximum today was 97°. It was quite cloudy to the west last evening with a high, thin overcast today. A breeze from the west arose at about 2 P.M. Our camp is located about 1 mile by road east of the municipal water tank at Triumph. We are camped beneath a large Mesquite tree in the wash bottom next to what was a cornfield with a brush fence surrounding it. 47 live traps set out last evening around inside of brush fence mentioned above caught 6 ♂ Perognathus spinatus and one ♀, and 1 ♂ and 1♀ Perognathus baylei (#187-195 incl.). Fence encloses a sandy field at the bottom of the wash. Field is about 100 yards long and 50 yards wide. The higher parts of the fence are built upon rocky ground, the lower parts in sand. Perognathus spinatus were caught within 20 feet of the rocky portions; one baylei was caught in the center under a bush about 100 feet from rocky ground. Tevis caught 4 Cletillus laevius under brushes within fence near or on rocky ground this afternoon. Caught one Bufo punctatus (#196) last night at 9:00 PM in rocky area on side hill 100 yds from camp (south) and about 200 yards
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Quest 1948 Journal 67 May 17 Trinfr, 1700 ft, Baja California from a small pond further down the wash. Birds seen here: as large Hawks, Cardinal, Plumbeous Snatecalles, Cactus Wren, Quail and American Vultures. No American Ravens seen here so far. May 18 Same Location. Minimum temperature last night was 60°F; maximum this afternoon was 95°F. 47 live traps baited with bird seed and set inside same brush fence as described under May 17 caught 3♂ Perognathus spinatus (#200,201+ 208) and 4 females, and two Peromyscus cremicus ,♂♀(#206+207). The traps were set in almost the same location in the small field as those of the previous night, but netted the same number of Perognathus spinatus with Peromyscus cremicus being caught in addition instead of Perognathus baylei. Shot bats yesterday evening. I shot two Pipistrellus hesperus (#197,198) and one Eptesicus fuscus (#199). The others of the group obtained the same thing except Dr. Benson who shot a Lasionycta ega in addition to the two other species. The Pipistrellus appeared at 6:30 P.M., but the larger bats obtained were not seen until 7:00 P.M. Due to clouds in the west the sunset could not be timed in relation to the appearance of the Pipistrellus.
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Quest 1948 Journal 68 May 18 Trinco, 1700 ft. Baja California Tevis caught three Newton's lepidus in Schuyler traps set along my trap line last night. Murray obtained one Caenidophorus tessellatus and a Diposaurus at noon today. Birds seen today included a Hooded Oriole, California Jay, Plainopepla, Western gratesated, Caracara, American Vulture, Quail?, and Eastern Wren. Tevis caught one Cettulus leucurus this afternoon. 8:45 P.M. Bats did not appear until 7 PM this evening. Both large and small species appeared at the same time. I shot the Eptesicus fuscus between 7 and 7:30 P.M. Shot a Poorwill at 7:30, mistaking it in the dark for a large bat. The sky was clear at sunset tonight possibly explaining the late appearance of the bats. Murray shot one Dasyptems ega and Dr. Benson a Pipistrellus hesperne and Eptesicus fuscus. Dr. Benson obtained one Myotis californicus from an abandoned mine S.W. of line this afternoon. The Poorwill (#212) was flying about 25 feet off the ground. Others were heard calling all evening. May 19 Same Location. Minimum temperature last night was 65°F, maximum today was 94°F.
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Quail 1948 Journal 69 May 19 Trumbo, 1700 ft., Baja California. minimum temperature? shot two Cetus [illegible] this afternoon at 1:30 in a brush fence 200 yards east of our camp (#215, 216). Also shot one Roadrunner (#214) which was stirring through the leaves and debris under a small tree on a sidehill 300 yards east of here. The Roadrunner had a large Cnemidophorus tessellatus (approx 10 in long) in its gizzard. Lizards are very common here in the late morning (around 11 AM) and mid-afternoon, several Cnemidophorus of large size coming into our camp each morning while we are sleeping. During the hottest part of the day they are not as com- mon, apparently moving about much less. Other lizards seen here have been Dipsoaurus dorsalis, Galvavirus draconides, the small Sleepsaurus, and Utas and Sceloporus magister. Bufo punctatus are very common in the area about camp in the evenings. Birds are numerous in this canyon; those seen today: Lila Woodpecker, Western Scratchele, California Jay, Roadrunner, Hooded Oriole, Poorwill, American Raven, American Vulture, White-winged Dove, Mexican Dove, Zantus Hummingbird (?), Caracara, and Quail, Cactus Wren and Plainopepels. Murray and Tevis went into Town this afternoon and obtained many Tadarida mexicana and T. pleciocin luscus from the same abandoned building visited before.
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Quest 1948 Journal 70 May 19 Trunfo, 1700 ft., Baja California I shot the Eptesicusfuscus this evening. Both the Eptesicus and Pipistrellus began flying about 7:15 P.M. - well after sunset. The day was clear and quite warm, the wind blowing from the east most of the day. Tonight is clear with almost a full moon. Running down the canyon in which we are camped to the town of Trunfo is a water main containing good spring water which arises about 200 yards up the canyon from me. The ranch 100 yards west of me gets its drinking water from the main and water for irrigation from a well in the canyon bottom. Trunfo has many wells containing water but the inhabitants claim it is undrinkable. Despite the arid appearance of the hills there appears to be abundant subsurface water in this region. It is claimed that the town of Trunfo was wrecked by a wind and rain storm after the departure of most of its inhabitants because of the mining company's failure. Animals of all kinds are very abundant here. Smelled a skunk last night. May 20 Leave Location. Minimum temperature last night was 64°F. Saw two Brown Towlees yesterday afternoon near brush fence east of camp.
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Quest 1948 Journal 5/1 May 20 Trunfo, 1500 ft, Baja California Maximum temperature today was 95° F, but it felt much hotter because of a lazy overcast and apparent high humidity. Broke camp at 2:30 and departed for Lantonio. Shot a Eile Woodpecker from a cuamouchel tree just east of camp. May 20 Lantonio, [illegible] ft, Baja California 4:30 P.M. Just finished hunting bats in two mines about 2 miles by road towards Trunfo from here. The two mines are visible on the south side of the road just this side of the pass between the two towns. Many Macrotus californicus were seen, but only three captured. The mines are quite extensive, and appeared to be good place for bats, but only one of them had bat in it, and three just Macrotna californicus. In the lower mine an open nest of Neotoma lepida was seen. It was about two feet off the floor and built on at a flat place in the rocks, appearing like a bird's nest made out of a redwood-like bark. Lantonio is a smaller town than Trunfo but in a much better condition and looking' quite prosperous. A very large mine and associated buildings is visible from the pass, and is about two miles south of this town. The Gulf of California is visible to the
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April 1948 Journal 72 May 20 San Antonio, munift., Baja California east from the pass west of town. Upon leaving town a deserted shack was investigated for bats in the thatched roof. No bats were present, but two Peromyscus cremicus were chased out of the thatched roof into the afternoon sun. May 20 1/2 mile E of San Antonio, Baja California. Stopped at an old mine by the road. It was composed of a large tunnel entering the hill at road level and a slanting tunnel up from the main one leading outside to an opening about 200 ft higher than the lower tunnel. The mine was found to be full of Macrotes californicus and what Dr Benson tentatively called Leptonycter. I put up five of each type which are entered in the catalog under the above heading and date. About 100 bats of the two types were caught by chasing them into a blind tunnel and then closing the entrance with a large mosquito net. Both types of bats were found to bite, the "Leptonycter" very viciously. Over half of the bats were dead upon reaching a spot to camp about five miles down the road. They probably died from heat and suffocation-- some being packed very tightly in what
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Quack 1948 Journal 73 May 20 6 mi. E of San Antonio, Baja California. bags we had available at the time. I have noticed that so far it seems as though we have found bats only in caves and mines that are quite open or else ventilated in some way so that a draft can be felt. None of the female 'Leptonycteris' that I put up had embryos. I noticed that they came in two shades of brown, varying from reddish to dark grey. The hill in which we found the mine was covered with Palo Blanco trees with a few Pitaya dulce and Prickly Pear cactuses growing underneath the trees. May 21 6 mi. E.S.E. San Antonio, 1200 ft. Baja California Went hunting last night and obtained two Elf Owls between 8:30 and 9:00 P.M. They were located by their calling from the branches of bare trees along the road. A very faint eyesline was detected in one which was a very light yellow. They seemed to be associated in pairs, for each time I shot I would notice one flying from a nearby tree. Dr. Benson saw one peering out from a small hole in a Cardon but did not obtain it. I put up one (#235), Dr. Benson the other one. The Elf Owls which were seen were perched on the lower branches of
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"Quest 1948" Journal 74 May 21 (am) FSE. San Quintin, 1200 ft. Baja California. the trees and large bushes -- none were seen in the tops of trees or bushes. Many bats were seen flying up and down the road at tree level last night. When flying up the road they followed it, flying in a straight line, but when feeding over the trees and bushes, their circling, erratic, flight was observed. Heard the very noisy Gila Woodpeckers all morning. The combination of the cooing of the White-winged Doves and the loud calling of the Gila Woodpeckers made a very noticeable clanor from the first sign of dawn to about noon. Maximum Temperature today (1:15 PM) was 98°F. The day was clear with a good breeze from the east. Saw two Cardinals, two Ravens, and three Caracara flying together, the leading Two of which were fighting in midair. May 22 Buena Vista, 25 ft, 23°35'N, 109°41'W Baja California Minimum Temp. last night was 69°F, maximum today was 90°F. According to the inhabitant here there is a very small range of temperatures here, it being about like this all summer. The day has been perfectly clear with a very slight breeze off the bay.
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Quast 1948 75 Journal May 22 Buena Vista, 25-½ ft, 23°35'N, 109°41'W, Baja California Visited a mountain full of caves this afternoon. Its name is Cerro Agua Amarga and it lies about 4 miles S.E. of the school. From the school, looking S.E., three mountains are visible, the tallest one being on the right of the other two. The hill containing the caves is the center one. The caves occur in sedimentary strata that run through the hill and their maximum depth probably does not exceed 75 feet. Most of them have wide mouths and are spherical within, the surface of the being pitted by innumerable concavities about 3 inches wide and as deep. We investigated all the caves we could find on the hill and found bats in only two of them. The first cave containing bats was about half way up the hill on the N.W. side and was about 75 feet deep, two small rooms being present one in back of the other. The ceiling was concave in both rooms and about 10 feet high. The stench of guano filled our noses the moment we stepped into the cave. About 300 bats were in the cave, all being Macrotus californicus except one 'Lepto- mycteria' (?). The other cave containing bats was near the top of the hill and also on the N.W. side. It was found to contain only Macrotus califor- nicus and none were taken.
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Quest 1948 Journal 76 May 22 Buena Vista, 25½ ft, 23°35'N, 109°41'W, Baja California The skulls of the Macrolus taken at the first cave were cataloged by Murray & Tevis; Dr Benson put up the one Leptomys! May 23 Same Location. Minimum temperature last night was 69°F. It was a beautiful still moonlit night with a full moon and no clouds in the sky. 50 live traps set along a brush fence 500 yards N.W. of camp and through sandy arroyo- bottom caught only two Perognathus spinatus (#238+239). The sparsity of the catch I believe to be caused by the brilliant illumination of the full moon last night. Netted two Myotis californicus in a house 30 yards N. of camp, in which people are living in, last night. The bats were caught at dusk and were noted feeding around the mesquite and in the house the night previously. A Peromyscus eremicus live in the slatshed roof. A Cactus wren has a nest in one of the outer branches of a Palo Verde tree next to camp. There are young for they are heard when the bird arrives with food. Our camp is situated in a large clump of mesquite and Palo Verde trees about 300 yards north of the school here. We are camped at the west end of the bay, about 55 yards
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Quest 1948 Journal 77 May 23 Buena Vista 25+ ft, 23°35'N, 109°41'W, Baja California from the beach and next to a group of houses occupied by fishermen. We have been obtaining most of our meals at the house. 50 yards inland of us a sedimentary outcrop is visible and then the mesquite stop and the cactus and short bushes take over. The sedimentary outcrop is cut by an arroyo N.W. of camp which extends several miles west to the range of mountains called "Sierra Pinta". The mountains are covered with Fruta, Creosote, Ironwood, Ocotillo, Cholla, and Pitahayo dulces to a moderate degree, my being unable to call the vegetation either sparse or heavy. Large alluvial fans extend down from the mountains and water holes occur this time of year only at the heads of the arroyos and washes. Subsurface water is quite available in this region numerous wells occurring with windmills for pumping the water into tanks. From the hills as one looks down upon this area, one is impressed by the change in color between those areas supplied by subsurface water and those not. Almost every wash is very green in comparison to the alluvial fans, hills and mountains, the color being furnished by the green mesquite and Palo Verde.
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Quad 1948 Journal 78 May 23 Buena Vista 25+/- ft, 23°35'N, 109°41'W, Baja California We were told by a resident of San Jose del Cabo that the farther south from here we go down the peninsula, the greener the landscape will get, and that south of here many tropical fruits such as banana and papaya are grown. He said also that the cape south of here will be cooler. Watermelons are grown at a ranch about five miles south of here to be shipped to La Paz. Numerous sharks are visible during the day feeding in the shallow waters near the beach. They are small in size (approx. 3 feet), but one about five feet in length was brought in by a fisherman yesterday. Sting-rays occur in the sand in the beach. Maximum temperature today was 94° F. Cistellus leucurus are common between the sedimentary rock outcrops and the beach, that region also containing many Dipsoaurus and Calisaurus. Birds seen today: 1 Pelican, Cactus Wrens, Cardinal, Gila Woodpecker, and Mexican Dove. May 24 Las Cuevas, 23°34'N, 109°39'W, Baja California Las Cuevas is a small agricultural village about an hour drive S.E. of Buena Vista. The town is composed of about 75 small houses on the west bank of
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Quadrant 1948 Journal 59 May 24 Las Cuevas, 23°34'N, 109°39'W Baja California a large arroyo that cuts its way in a northerly direction through a large flat valley. The arroyo walls are about 200 feet high and rise vertically from the sand of the arroyo bottom which is about 1/4 mile in width at the town. Caverns occur in the sandstone walls with their floors level with the wash bottom, attesting to their origin by water action during flood time. Three such caves were visited in that region. The first cave visited was across the arroyo from the town and faced in a south-west direction. An irrigation ditch of small size ran in front of its mouth and numerous large-leaved saplings grew in its entrance. The smell of guano greeted (?) our noses the minute we stepped into the exterior, and heard the chittering of bats at the back of it. The cave was about eighty feet in depth and about 15 feet wide for most of its length, with the ceiling divided into three concave regions, the innermost being the largest (approx 10x15 ft). Numerous crevices extended back into the rock and many hollows opening downward occurred in the back of the cave. The floor was irregular, being composed of the same black dusty material that we went through at the cave at Mulege. The bats were present by the hundreds, whole areas, some 5x7 feet, being covered with a layer of
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Quast 1948 Journal 80 May 24 Las Cuevas, 23°34'N, 109°39'W, Baja California tightly packed, chittering bats. The tightly packed bats were clustered on almost vertical side walls and were determined to be Myotis velifer while many Natalus mexicanus were hanging nearby, mostly in the small hollows opening downward from the rock. One Natalus mexicanus was seen hanging among the Myotis velifer that blanketed some spots of the cavern walls, but some of the hollows in the rocks contained equal quantities of Myotis and Natalus, crowded together. Some of the openings of the hollows were so small that the tightly packed bats had to be stirred out with a stick. Several Macrotus californicus were seen hanging in the highest parts of the cave (about 25 feet). There was casily a thousand Myotis velifer within the medium-sized cave with perhaps two-hundred or less Natalus mexicanus. My estimate on the number of Myotis is conservative in comparison to some of the other ones. One part of the floor was covered with a mass about 3 feet square of small black beetles. As the bats began flying, the chittering increased and we started raining down on our heads. 53 Natalus mexicanus were netted and saved and 28 Myotis velifer. The second cave was very spectacular because of its large size. Its opening was about 80 ft.
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Quast 1948 Journal 81 May 24 Las Cuevas, 23°34'N, 109°39'W, Baja California wide and the roof over the entrance was about 150 feet above the floor. This cave was about 100 yards south of the first cave and also in the east cliff of the arroyo and also facing south. The roof of the first room was higher than the entrance and domed like that of a cathedral. Wasp nests were just visible on the top of the concave portion. Inwardly the roof dropped sharply to about fifty feet and then gradually towards the end of the cave in two passages. This cave was about 150 feet deep; but the only bats seen were Macrotus californicus, which flew from their roost in the roof of inward-most passages out into the high domed portion to circle spectacularly around the dome or to drop back into the inner, lower parts of the cave. (chid) The other cave visited was about 300 yards from town and on the west side of the arroyo. It too opened to the south and was high and narrow. Dr. Benson and Tevis investigated it, but found it to contain only Macrotus californicus. One Black Phoebe was seen in each of the first two cave entrances. The main activity of the people of the town is growing vegetables which are irrigated by
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Quart 1948 Journal 82 May 24 Las Cuevas, 23° 34' N, 109° 39' W, Baja California a small stream of water that is pumped from the well in the arroyo bottom into an irrigation ditch that runs along its east wall in a northerly direction. May 25 El Carrizalito, 1400 ft, 5 mi N Santiago, Baja California Arrived here yesterday afternoon after about a half hour drive from Las Cuevas. This camp is about two miles west of the main road going from Buena Vista to Santiago. The road to Las Cuevas turns off the main road several miles N.W. of here. From here we can look eastward and see the town of Las Cuevas and beyond that to the sea. We are camped in the unfinished building of a tuberculosis sanitarium, that was started several years ago and then apparently abandoned. There is a fine spring here in the hill back of us which supports two clumps of palm trees up on the hill. To the eastward the Arroyo de Santiago runs northward to the sea. We are camped beneath the hills delineating the west side of the valley and at a considerable altitude higher than the valley floor. The hills in back of us are composed of very large granite boulders and are very steep. Palo blanco, Palo verde, Wild fig, Pitayas dulce and numerous shrubs are crowded
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Quest 1948 Journal 83 May 25 El Carrizalito, 1400 ft, 5 mi N. Santiago, Baja California among the boulders, giving an impression of much denser vegetation than that north of here. To the east of her Limboi, Mesquite, Ironwood, and Palo verde form a dense covering to the flat valley floor. Wild life is very plentiful here. Birds heard and seen around the buildings were California Jay, Mexican Dove, White-winged dove, Cactus Wren, American Raven, Lila Woodpecker, and a large hawk. There are two water tanks on the hill about 75 yards west of camp. Tried Dr. Benson's technique of placing fine wires across the sur- face of the water, cross-crossed, and about two feet apart. Because of the sides of the tank extending above the water surface, the wires were about one inch above the water. In the tank we worked 3 Eptesicus fuscus and one Pipistrellus hesperus hit the wires and fell into the water where they were caught. Many of the slower flying Pipistrellus and possibly some of the larger bats hit the wires and water but took off from the surface of the tank before they could be caught. Trev's working with his net over the other tanks which is about 100 feet higher up the hill could several Pipistrellus hesperus and Myotis
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Quest 1948 Journal 84 May 25 El Carrigalito, 1400ft, 5 mi N. Santiago, Baja California Californicus. Murray shot a Dasypus ega flying over a small cornfield south of camp at dusk last night. Minimum temperature last night was 75°, max- imun today was 92° F. The temperature at the time of writing is 85° (9:00 P.M.) Put up bats all day and hunted them again tonight. Went down on the roadway which is usually a good place for bats, but saw only Pipistrellus hesperus feeding low to the ground up and down the road. Several large bats were seen flying high and towards the arroyo bottom from the hills in back of camp at dusk, but were too high and far away to identify or shoot. Netted four Antrozous minor and one Macrotus californicus in the buildings last night about 9: PM. They were hanging in ceiling corners when seen by flashlight. The two species were hanging in separate rooms. Murray caught about 10 Pipistrellus hesperus, several Myotis californicus, and one Eptesicus fuscus and one Lasiurus borealis at late dusk and dark tonight. Tevis, working with the hand net over the upper tank caught 15 Pipistrellus hesperus, 3 Myotis californicus and 3 Corynorhinus. He caught
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Quest 1948 Journal 85 May 25 El Carrizalito, 1400 ft., 5 mi. N. Santiago, Baja California. the Coyprionous within three minutes at late dusk and obtained none before or after that time. May 26 Same location. 16 Schuyler traps set among large granite boulders, Limboi, Ironwood, mesquite, and Petaya dulce on steep side hills caught three Neotoma lepida. Three traps were set off and pulled the full length of their chains with nothing in them. Bait used was dried apple and dried peaches. Only Neotoma lepida caught by the rest of the group in Schuylers last night. Minimum temperature last night was 75°; maximum today was 90°. The weather has been absolutely clear with a warm breeze, in the afternoon. Revisited Las Cuevas and its caves this morning. The first cave, described earlier, contained an estimated eleven square feet of tightly packed Myotis velifer this second time. In addition to this eleven square feet of Myotis rooting on the open vertical walls in two places (one 3 feet²; one 8 feet²) many were found in deep pockets in the rocks. We captured only eight Natalus mexicanus and noticed that they seemed much fewer in number than the time previously.
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Quast 1948 Journal 86 May 26, El Carrigalito, 1400ft, 5mi N Santiago, Baja California Dr. Benson and I re-estimated the dimensions of Cave #1. It was decided that the cave consisted of two rooms and the entrance. The opening was approx. 13 feet in width and in height. The first room was about 30 feet high and ten feet high, with several concavities in the ceiling about 3' x 5' ending in flat horizontal ceiling. The opening between the first and second rooms was approx. 10' x 10'. The second room was about 20 feet high with an oval depression in the ceiling ending in flat, horizontal sandstone, this depression being about 8 x 15' in dimensions. This cave is about 70 feet long and illuminated clear to the end except for the small side branches containing the bats in depressions and on its flat walls. Upon entering the cave, the two groups of Myotis started "chittering", but very few flew despite our turning the light of our flashlight upon them. They were in two groups as mentioned before. It was about 10:30 A.M. when we visited that cave. Finally Dr. Benson took a long stick and actually had to push the Myotis velifer with it to make them fly. A furrow remained in the group where those touched by the stick had flown.
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Quest 1948 Journal 87 May 26 El Carriyalito, 1400 ft, 5 mi N. Santiago, Baja Calif. The Natalis mexicanus were seen only in the potholes in the beginning and also were stirred from their hiding places with difficulty. After they were frightened out of the potholes, one group by poking them with a bamboo stick, the Natalis flew to the roof of the second room where they hung in groups of about eight. About ten Macrotus californicus were in the roof of room #1 and flew in - immediately when illuminated by the flashlight. There were noticeably fewer bats this time than when the cave was visited previously. Numerous cockroaches were seen near the Myotis groups. There were many mud-wasp nests on the cave walls and the nest of one Black Phoebe about 25 feet from the entrance and ten feet off the ground. Of the numerous potholes, the Natalis mexicanus (with a few Myotis velifer) gathered in the most protected and extensive ones. The second cave visited was a little over 100 yards south of the first one and also called the second cave in the previous description yesterday. Dr. Benson estimated its length as 250 feet with its entrance 80 feet high and wide. It was in three sections; one, the wide mouth about 80' long; two a center, smaller section also about 80'
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Quest 1949 Journal 88 May 26 El Carrizalito, 1400 ft 5 mi N. Santiago, Baja California long; and, the third section composed of a tunnel entering an enlarged section at the back. There were several hundred Macrotus californicus hanging in the ceiling of the cave, in the third section which flew out into the first section in a steady stream when disturbed. No Macrotus were taken. About 22 spectators gathered to watch the action in the caves. May 27 Lane Location Three. Roadrunners and many Celsiarius and Dipsoaaurus were seen along the road yesterday. Saw a large Crocodile in the bush east of camp yesterday Hunted bats yesterday at dusk and darks. Shot one Myotis californicus at 7:15 flying along a brush fence. Netted two Epistrellus lesperea over the lower water tank after dark. Dr. Benson netted one Corynorhinus there among other bats. The bats were noticeably fewer last night, th population possibly being taken down by the fairly large numbers of bats taken there on previous nights by the group. Species of bats taken at this location to date have been: Macrotus californicus, Myotis calif- orius, Myotis volans, Myotis velifer, Eptesicus fuscus, Pipistrellus hesperna, Laminus, Dasypatema ega, Antrogous minor, and Corynorhinus.
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August 1948 Journal 89 May 27 El Carrigalito, 1400 ft, 5 mi N. Santiago, Baja California Minimum temperature last night was 74° F, max - imum today was 87°. May 28 Location Minimum temperature last night was 70°F. The valley below us this morning was filled with fog, but the mountains in back of camp were clear of fog by daylight and brilliantly it- luminated by the sun. For some reason unknown to us, the bats were very common around the water tanks last night. I netted eight female Pipistrellus hesperus between 7:30 and 9 P.M. that were flying over the upper water tanks. Travis netted four female Pipistrellus hesperus, one Myotis californicus and one Corynorhinus at the same place and time, he working on the side of the tank opposite to mine. Murray netted several Myotis californicus and Pipistrellus hesperus in the same time interval at the lower tank. Dr. Benson netted 5♂ and two female Antrozous minimus in the building last night. We visited a pool high on the hill last night at 9:30 P.M. It was circular and about 20 feet in diameter and entirely surrounded by Palm trees. Dr. Benson said that he saw a bat (Lasiurus - Lasypeters?) leave one of the palms at dusk.
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Quest 1948 Journal 90 May 28 El Carrizalito, 1400 ft, 5 mi N. Santiago, Baja California. Visited a so-called "cave" about a mile north of here this morning. Found nothing under the huge boulder with a space underneath that we were led to expect a tibia and remnants of a human spinal column. A different type of Ocotillo grows here. It is in the form of a tree about 15 feet high and has large red blossoms. Wild fig trees are common near water sources, the ponds and springs being marked with tall palm trees. Gua- mouchal trees and large Mesquite trees also seem to grow in the vicinity of subterranean water. A few Mango trees are found near ranches and places of habitations. In the flat below the canyon mouths de Ocotillo, Limboi, Ironwood, Palo Blanco, Palo Verde, Pitaya Dulce, Cardones and Mesquite grows. Small bits of grass are visible in the area, but the whole region is very heavily grazed by cattle and goats. According to the local inhabitants, deer can be found in the mountains just west of here. Chukla and Bassariscus are also said to be common. Maximum temperature today was 87° F. Birds seen today: Lila Woodpecker, Cardinal, California Jay, American Raven, Buzzard, Caracara,
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Quast 1948 Journal 91 May28 El Carrizalito, 1400ft, 5mi N Santiago, Baja California Spring + Pool Spring physician's house Hillside of large granite boulders pipeline Tanks camp Hospital Brush Fence Flat Slope 100yds. Pool Caretaker's house Corn field Flat Slope Road from hospital to main road Map of El Carrizalito W
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Quest 1948 Journal 92 May 28 El Carriyalito, 1400 ft, 5mi N. Santiago, Baja California Mexican Dove, White-winged Dove. The tanks and pool by the caretaker's house contain Brufu punctatus; the pool north of th physician's house contains Hyla. May 29 Lam. Minimum temperature last night was 52° F. The valley was filled with fog at 6:30 this morning. Tevis caught an Antrozous minor over th, wate tanks (upper one) last night and Dr. Benson netted a Dasyptruma ega over the pond by the Caretaker's house. I netled one Antinous minor in the celing of the two story stair-well of this building last night, shot a Pipistrellus hespeme over the cornfield at dusk, and netted a Pipistrellus hesperme and a Myotis californicus over the Caretaker's pool last night between 7:30 and 9:00 P.M. Bats started flying last night at 7:45 P.M., the Pipistrellus being seen at that time feeding among the rocks and trees well up the mountain slope. Saw a flock of Quail and a Plumbeous Snateacher this morning in the flat area below the hill. May 30 El Choro 800+ ft 2mi W. Agua Caliente, Cape District, Baja California Arrived here about 5: P.M., after an approx 1/2 hours drive from our previous camp over a good
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Quest 1948 Journal 93 May 30 El Choro, 800+ ft., 2 mi W. Agua Caliente, Cap District, Baja Calif. road. Santiago and Agua Caliente lie in a broad, flat wash-bottom east of very tall and rough-looking mountains. The area looks rich and wealthy from the agricultural standpoint, judging from similar areas seen in the north. Water for irrigation is available, but apparently in limited quantities at this time of year. We are camped at the place where the stream bed passing Agua Caliente and Santiago meets the mountains to their west. The canyon mouth is about 50 yards west of camp at which a small concrete irrigation dam is built about 75 feet wide and 15 feet high. A concrete irrigation slitch leads from the north side of the dam down the north side of the broadening canyon towards Agua Caliente. Numerous hot springs occurs in the immediate vicinity of the dam, but the water issuing forth is warm and not hot. The water for irrigation above the dam appears to arise within a distance of 100 yards from the dam. The canyon walls are steep and the canym narrow and filled with small granite boulders. Growing on the hills are mostly Palo blanco, and Cardona Pitiaya Dulce, with a few Mesquite and Palo Verde in the wash area (Anoyo del largo). Tules and small thorny bushes grow-
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Quest 1948 Journal 94 May 30 El Chorro, 800+ ft, 2 mi W Agua Caliente, Cape District, Baja Calif. around the pond at the dam. The wash area and canyon walls are grazed by cattle. Shot bats last night here at dusk. All I obtained was two female Dasypus ega. Dr. Benson shot 2 Tadarid mexicana, 4 Tadarida femorosacca and two Dasypus ega. Teris and Murray got 4 Dasypus ega and one Pipis- trellus hesperus. The first bats seen were the small Pipis- trellus hesperus, followed immediately by the larger forms. All were flying east and by the hundreds, it looking like a mass bat myrati; for a period of a half hour. At first all were flying high, even the Pipistrellus appearing to be out of gunshot range, but before dark they began to fly much lower, especially within the canyon. The Tadarida femorosacca were easily distinguished by their rapid flight, large size, and long narrow wings. The Dasypus ega, also of large size, had much broader wings and flew much slower, and with far less wingbeats per second. The larger Tadarida were hard to hit and stop with no. 10's in the 16 ga shotgun, a very large number of shells being expended for the number of bats obtained. A Least Grebe was seen in the pond above the dam yesterday afternoon.
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Quest 1948 Journal 95 May 30 El Chono, 800+ ft, 2mi W Agua Caliente, Cape District, Baja Calif. Minimum Temperature last night was 70°F. Temper- ature at 10:00 A.M. today is 86°. The pond above the dam is about 60 yards long and about 25 yards at its widest point. Tried catching bats last night from 8 to 10 P.M. by stringing two fine wires across a section of the pool. Only one bat was trapped, but it swam to the other side of the pond and was lost. It looked very much like a Dasypeltus, and hit the wire at 9:30 P.M. Many White-winged Doves came to the water to drink. Saw a Yellow Throat and several California Jays also. Two or three Black Phoebe's seen along waters edge, perched on rocks and flying about concrete dam. Maximum Temperature today was 95°F. May 31 Same location Minimum temperature last night was 68°F. Temp. at 12:30 today was 94°F. Shot bats last night at dusk at pool at dam by camp. Bats appeared at 6:45 P.M. and all were flying high up the canyon walls, including the Pipistrellus, when first seen. As it got darker more appeared, and they began flying lower. Shot 1 ♀ Dasypeltus ega (#279-282 incl.), 3♂ Tadarida fomer- osacca (#283-286 incl.) and one Tadarida mexicana #287. Others of the group obtained the same species. Black Phoebe's and many Canyon wrens seen
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Quest 1948 Journal 96 May 31 El Chorro, 800+ ft, 2 mi W Agua Caliente Cape District, Baja Calif. up the canyon yesterday. Broke camp at 1:30 and departed for Lanta Anita. June 1 Lanta Anita, 250+ ft. Cape District, Baja California Arrived here about 4 P.M. yesterday. Heard that there were bats in one of the unoccupied houses at this place so we investigated and found one Macrotus californicus and about 100 Myotis velifer. The Myotis were clustered in a corner of the ceiling over a hole leading into the thick adobe walls. Several were taken by Dr. Benson, of which I took and put up one. In another room a single Macrotus californicus was seen. Investigated a bat cave about 3/4 mile S.E. of this place the morning. Found it to be a narrow hole in a granite cliff face about 75 feet long and wide enough and high enough to accommodate a crawling man. The cave con- tained only Macrotus californicus of about 20 in number of both sexes. Minimum Temperature last night was 64°F. June 2 6 mi N San Jose del Cabo 250+ ft, Baja California Minimum temperature last night was 65°F. We are camped about two miles S.E. of Lanta Anita in an arroyo bottom. We are surrounded by scattered palm trees, mesquite, and Guanouchal trees.
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Quest 1948 Journal 97 June 2 6 mi N. San Jose del Cabo, 250' ft, Baja California Maximum temp today was 88°F. Shot bats last night at dusk and obtained three Dasypus ega, 18, 24. Found that the Dasypetus hid in the dry fronds of palm trees in vicinity, Murray seeing one alight thus last night and shooting it afterwards, and Dr. Benson chasing them out of palm tree at 9 this morning by probing the fronds with a long stick (several of these obtained). Cetillus leucurus are very plentiful in a tar- puckley pear patch 100 yards south of camp. Shot a Lepus californicus then at noon today (#295). Dr. Benson obtained a number of Balantiapterys plicata this afternoon from a cave several miles from here. Tevis caught a large rattlesnake on the flat west of here this evening. Water may be found in a ditch 100 yds S.W. of here. The ditch is dug in a stream bottom to a depth of about two feet and contains water for over 50 yards. The water is clear and about one inch deep. Dr. Benson set by the ditch last night for an hour after dark but obtained only one Dasypus ega that was not drinking, but flying over his head. Birds seen today: Thrasher, Sparrow-Hawk, Queel, Hooded & Scott Owl, Caracara, American Raven, Turkey Vulture, Gila Woodpecker, Cactus
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Quest 1948 Journal 98 June 2 Loma Nidum, Jose del Cabo, 250+ ft., Baja California. Wren and Cardinal. Lloyd Tevis caught two Phylodactylus unctus in a cave 100 yds south of here at 8 tonight. The Dasypus began flying at 6:45 this evening (sunset) and again fifteen minutes before the small bats appeared. No Tadarida femorosa have been seen here at dusk despite the fact that they were seen at Santa Anita which is less than two miles west of here. Perhaps thiaroyo is not suited to them, or else we are camped just out of their range from the moun- tains to the west. The nights have been cool and pleasant and the days not excessively warm. The air is quite damp at night and the last two mornings have had fog west of here near the mountains. June 3 Same Location Minimum temperature last night was 66°F, maximum today 91°F. 48 live traps set along area where hillside south of camp meets sandy wash below, caught 20, 29 Peognathus spinatus (#306-309 incl). No other traps were disturbed. Tevis caught a Cranyon last night in place where stream bed meets wash south of camp. Saw several California Jays today. Set out 10 Schuyler traps through wash and along hillside south of camp tonight.
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Quadr 1948 Journal 99 June 3 Loni N. San Jose del Cabo, 250+ ft., Baja California. Murray caught several Geophis today in a cornfield 200 yds N.E. of here. The humidity is very high here, especially at night. Fog was present to the west this morning, clearing about 9 A.M. Pleasant day today with a nice breeze. Clouds tonight high in the north with a slight north breeze and noticeable dampness in the air. Murray caught one Dipodomys merriami in his live traps last night and several Perognathus spinatus. June 4 Same Location. Minimum last night was 67 F. 10 Schuyler traps set along rocky hillside 200 yds south of camp and in wash below caught 2 Neotoma lepida (#310+311). None other of the Schuyler traps were disturbed. Dr. Benson, Tevis + Murray investigated bats that had been seen flying into a crevice earlier this morning. They found one Tadarida peninsularis and many Myotis wedged in under exfoliating layers of a large granite boulder. Location was 200 yds south of camp in rocky hillside with granite outcrops. June 4 San Jose del Cabo, Baja California Observed bats that looked like Tadarida mexicana leave a tin sign that
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Quest 1948 Journal 100 June 4 San Jose del Cabo, Baja California was fastened against a stuccoed wall at 7 tonight. Bats were between sign and wall and about 50 left at exactly 7:00 P.M. with others following in twos and threes about five minutes apart for the following half hour. Bats are varied and numerous in the town at dusk, all sizes being seen flying overhead. Boys brought Dr. Benson 3 Myotis velifer they caught by hand. The air is very humid at 9:30 tonight and has been since this afternoon. Palm trees abound in and around town and extensive agriculture with irrigation is carried on in the wash north of town. June 5 Some location 6:25 A.M. Seated me again in the cafe waiting for breakfast to be served. Slept north of town last night and took no minimum temperature reading. It rained this morning about 4 AM and at present there are many clouds in the sky. The humidity is very high this morning. June 5 El Tule, 25° F., Baja California El Tule is a ranch on the road between San Jose del Cabo and San Lucas, about halfway between the two. Several miles back towards San Jose del Cabo we investigated a bat cave about 1/2 mile
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Quest 1948 Journal 101 June 5 El Tule, 25° ft, Baja California off the highway, towards the ocean and procured 4 Balantiopteryx plicata (see species account). Dr. Benson saw one Lepus californicus on the road and shot it. Also seen in a sandy wash was one Citellus leucurus. The Terrain between here and San Jose del Cabo is noticeably different than north of that place. We have entered a section of low rolling hills with numerous washes between composed of what appears to be decomposed granite. The hills have a red tinture to them while the washes are white with the minutely fractured granite gravel. Towards the interior the mountains rise abruptly from the coast hills. The hills are vegetated with low brush and Pitahaya agria and barrel cactus, with the washes containing much more dense vegetation. Jumbo Ocotillo, Cardon, Pitahaya dulce, Palo Blanco and Cholla are some of the many plants in the washes. June 6 1mi N Cabo San Lucas, 30° ft, Baja California Minimum temperature last night was 53°F. It looked like rain yesterday at dusk, a dark, heavy overcast moving in from the south, but no rain was noted during the night. This morning the sky is clear except for a very few scattered clouds. We are camped east of the town on the road to San Jose del Cabo, surrounding us are fields
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Quest 1948 Journal 102 June 6 Lumi N. Calo San Lucas, 20 ft, Bajo California, and the sandy wash of the large arroyo that runs past the town from the north. South of us is a cornfield and then a beach; north of us, an empty cleared field. Between our camp and the town is about a mile of sandy wash of coarse granite gravel overgrown with "Romerillo?" - a very small-leaved bush growing about 4 feet high. The hills are about 2 miles to our east. Shot bats last night at dusk and obtained 3 Tadarida femorosacca (#313, 314, 315) [see species account]. Others of the group obtained Balanipteryx placata and Pipistrellus hesperus. These species were shot between 6:45 and 7:30 P.M. Lupus californicus are common here, three being seen about 100 yds east of camp. Birds seen this morning: Killdeer, Flicker, Cactus Wren, Ash-throated flycatcher, Hooded Oriole, Cardinal, Caracara, Buzzard, Raven. Cabo San Lucas is a fishing village built almost entirely of wooden houses. A cannery is located on the beach south of town and at present is processing tuna. Several large American fishing boats are operating from here. Fish are very abundant around the pier at the cannery, thousands being seen in large schools evidently feeding on cannery waste. The fish are so thick that they look like huge patches of seaweed from the
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Quast 1948 Journal 103 June 6 1 mi N Cabo San Lucas, 20' ft Baja California bottom of th bay to th surface. Those of the schools are about 6 in long, but Cabrillo were cought off the pier that weigh from 4-8 lbs. June 7 Punta Gasparino, 10+ ft, 23°16'N, 110°9'W Baja California Arrived here yesterday after a hard but interesting trip from Cabo San Lucas. This road seems to be travelled much less than that on the east side of the cape and leads over considerably rougher terrain, climbing high into the mountains between here and Cabo San Lucas. The vegetation is of the same kind as in the southern part of the peninsula but grows high and heavy from th mountains to here. We are still in the weathered granite country and see occasional granite outcrops in the form of large boulders. Considerable more soil is present in this area. Minimum temperature last night was 63°, max- imum today was 77°. We are camped in a large wash just north of Punta Gasparino and are about 200 yds from the ocean, separated from it by a large level beach. South of us are small sand dunes thickly over- grown with short dense shrubs and composed of very fine, dark sand. North of us and forest- east of us is the wash bottom that points towardsthe sea from the mountains several miles to the east. Saw two large Iguanas yesterday that were
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Quest 1948 Journal 104 June 7 Punta Espino, 10 ft, 23°16'N, 110°9'W, Baja California sitting on large granite boulders well in from the sea - neither were obtained. Saw a rattlesnake last evening while setting traps but was unable to procure it. Dr. Benson shot one this morning. June 8 same Location. Minimum temperature last night was 63°F, Temperature at 11:30 AM is 74°F. 48 live traps set last night in dark sand dunes south of camp (same location as previous night) caught 7♂, 6♀ Perognathus arenarius (#325-337 incl). Dr. Benson, Murray, and Lewis spent last night at a ranch near here at which open water is found. They netted and shot some Pipistrellus and Natalis mexicanus. Their live traps set on the rocky slopes caught Perognathus spinatus and one immature Peromyscus eremicus. The weather has been very pleasant here with clear sunny days and a cool breeze off the ocean. Went fishing in the surf the evening before last and catched one small and one large fish, the latter of which we had for breakfast the following morning. Dug some small crabs out of the sand and used them for catching the smallest fishes, using it in turn for bait for the larger ones. Went fishing again last evening but caught nothing, the surf being so rough that the 7 oz weight wouldn't hold the line out.
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Quast 1948 Journal 105 June 8 Punta Gasparino, 10't ft., 23°16'N, 110°9'W. Baja California. Very few bats seen here at dusk the last two nights. Saw one this morning at 5:30 flying very fast among bushes in wash. Birds seen here: California Jay, Brown Toucan, Pelican, Cormorant, California Raven, Bupeend + Caracara. June 9 San Juan de la Cerradeca, 1600 ft. W. base Sierra Laguna Baxi Calif. Arrived here yesterday about 9 P.M. after an easy trip from Punta Gasparino. The road became good from El Pescadero on to Todos Santos. Sugar cane was being harvested and squeezed at El Pescadero when we passed through and I got the impression of abundant water being present there, large fields of sugar cane and corn being passed, attesting to a large quantity of irrigation being carried on. Todos Santos is a pleasant town about the size of Trumpr, and is located by large fields of sugar cane and corn. Saw the first gas station here south of La Pay. The ocean and beach is visible from the town. We are camped very high up th Aroyo de La Cerradeca in preparation for a pack trip into La Laguna. NNE of us rise the rocky prominence near La Laguna and is visible from here as well as Todos Santos. The charge for the trip is said to be four pesos per day per animal with
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Quart 1948 Journal 106 June 9 San Juan de la Barra, 1600 ft W base line Laguna Bay Calif the necessity of feeding our guide at our own expense for the trip. We are well into the foothill of the Victoria mountain and steep canyon wall rise around us. The canyon slopes are composed mainly of large granite boulders and dark brown soil. Minimum temperature last night was 69°F, max- imum today was 78°. June 10 Same location. Minimum temperature last night was 68°F. Went hunting yesterday afternoon but saw only one Citellus leucurus and one Vta Thalasina. Obtained the squirrel, but was unable to get the Vta. The arroyo is very dry here and game appears to be very scarce. Just above our camp the sandy wash changes to a narrow, steep- walled canyon with vertical rock walls rising vertically on each side of it. This canyon is also bone-dry, the people living here getting their water at quite a distance and from a spring high upon a hill. Shot bats last night and obtained one Pipistrellus hesperus and two Eptesicus fuscus (# 339, 340 + 341). The Pipistrellus bats did not appear until 7:15 and the Eptesicus until 7:30 P.M. Others of the group obtained more Eptesicus and some very dark ones were noticed among those of this species obtained.
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Quest 1948 Journal 107 June 10 San Juan de la Barradera, 1600 ft. W base Sierra Laguna Baja Calif. The large Cnemidophorus lizards are common in the wash area and Calisaurus also. The Uta thalassica was the only lizard seen in a short walk above the wash through the rocky canyon at its head. A large group of small bats feeds about the porch and associated buildings of the people living here. Dr. Benson tried to net several that were hanging in a slack nearly at 7:30 PM yesterday but they escaped through large holes in the walls. The large Pitaya (dube?) is bearing fruit and several people were seen knocking off the fruiting bodies presumably for eating. The fruit is the size of a large apple and covered with dense yellow spines about an inch long. The meat is of a deep red color. The vegetation on the hills can hardly be called vegetation at all. All except the locally called "skunk-tree" which now is bearing yellow blossoms only, is entirely without leaves and appears to be dead. Nothing meets the eye on gazing at the hills except the yellow blossoms of the before-mentioned tree, the Pitaya, and the leafless brown trunks and branches of the arid-adapted bushes and trees. One exception I forgot to mention was a few
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Quast 1948 Journal 108 Jun 10 San Juan de la Barradera, 1600 ft, W base Sierra Laguna, Baja Calif. wild fig and oak trees bearing leaves. The wild figs are ripe now. The local occupation seems to be mule raising coupled with wood-cutting. The country is evidently overgrazed for the mules also, judging from the nonchalance in their eating dried pieces of wood from a wood-pile nearby. Most of the wood cutting seems to take place in the area of La Laguna in which to Oak and Madrono trees are found. Note: The four Vta thalisseria listed under this date in catalog were obtained June 11. # 343-346 incl. June 11 La Laguna, 6200 ft, Sierra de la Laguna, Baja California Arrived here yesterday about 5 P.M. after a pack trip lasting 7 hours from previous camp. Minimum temperature last night was 51°, maximum today was 79°. Last night and today were clear with a good breeze coming up in the afternoon from the west. La Laguna valley is about one mile long measuring from the slopes of the basin and about 1/3 mile wide. Most of the bottom of the basin 2/3 mil x 1,000 yds. is composed of the remains of the lake bottom that once existed here, and is marked by fairly level grassy soil with several gullies or stream beds running through it. The valley runs in an approx. E-W direction, the stream flowing from the SW end to the eastern end where it exits in a northerly [See map pg. 117]
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Quest 1948 Journal 109 June 11 La Laguna, 6200 ft., Sierra de la Laguna, Baja California. Direction in a canyon. Water exists at this time in the S.W. corner in the form of several pools about 4 ft. in diameter; in the center where a stream begins and flows almost to the exit when it goes underground to emerge again in the canyon exit, and in two springs found in the southern side of the east portion of the valley, both of which form streams for but a short distance. The soil on the hills is of a granite base and granite boulders of large dimensions are visible all around us and several also in the valley floor. The hills are covered with a forest of oak, pinyon pine, and Madrone trees which grow down to the one-time meadow of this shallow-basin floor. Very little leaf debris has accumulated beneath the trees; the bare soil present in most of the places. Numerous cycads (?) are spotted through the forest and some prickly pear and also one palm tree was found in the forest. The grass on the basin floor is definitely over- grazed and in spots no grass at all is to be found. The soil appears to be eroding rapidly as the result of overgrazing and it will take but a few years to remove most of that remaining. Around the few pools found here and along the stream in the center and at the exit small, leavy
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Quest 1948 Journal 110 June 11 La Laguna, 6200 ft., Sierra de la Laguna, Baja California. leafed water plants form a veritable mattress. The trip up here from San Juan de la Seradua yesterday was one requiring a considerable amount of exertion and a considerable reserve of preparation. For six hours the four of us and three Mexicans pushed the horses and mules up the steep slopes, the trail tacking back and forth over the canyon faces. Not one piece of ground was encountered between the arroyo bottom and due that was not cocked at an angle, and usually a steep one. The mounts were not in good condition and we all had to take turns at leading them between rides. Only one very small spring was encountered on the trail, that being too very deep in a small hole and muddy. We drank some of the water nevertheless As we ascended the mountains from the arroyo bottom it was noticed that the leafless trees became larger and taller. Several new trees were seen that we had not experienced before, one of which was blooming while characteristically lacking leaves. Several very large wild-fig trees were seen, one of which contained about a dozen white-winged doves which were probably feeding on the ripening fruit. Cardones with blunt white spines were fairly common, and a few of the Organ-pipe cactus were seen. As we ascended
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Quest 1948 Journal 111 June 11 La Laguna, 6200+ ft, Sierra de la Laguna, Baja California still further up the steep slopes, the trees suddenly became shorter and more sparse, but oak trees became visible although those seen on all but the top slopes of the mountains appeared dead and clothed in masses of yellow, dried leaves. Palm trees were seen in a deep canyon to our right when we were nearing the summit and as we neared the top green oaks and Pinyon pines were seen. We crossed over into La Laguna through a large and prominent saddle in the crest of the mountains - a break visible from parts close to the arroyo and possibly visible from the valley floor south of Todos Santos. Just over the crest, all is different and very similar to forested sections of Upper Sonoran parts of Alta California. Shot bats last night and obtained one Eptesicus fuscus. The bats did not appear until about 7:15 P.M. and were first seen feeding over the oak and madrone trees of the wooded section. Later they began to feed among them and around their edges where the forest met the flat. At dark the bats were seen feeding over the flat. Three sizes were seen, small, medium, and large, the smallest probably being Pipistrellus hesperus or Myotis californicus, the larger ascertained to be Eptesicus fuscus. Dr. Benson obtained one Myotis californicus last night.
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Quast 1948 Journal 112 June 11 La Laguna, 6200' ft, Sierra de la Laguna, Baja California Murray caught one Sorex ornatus lagunae last night in a Museum special mouse trap baited with walnut and set in a bank along side of stream near camp. Fifty Museum special mouse traps baited with walnut and set along running water in center of field caught nothing and no traps were disturbed. Traps were set in stream bed usually on damp ground within two feet of the running water. No appreciable cover was found along the stream bank, that the existing being formed by a few large-leaved composite plants. Shot four Vta thalassina (#343-346 incl) this afternoon. They were found on large granite boulders in canyon wall at stream exit at east end of La Laguna. Most of these lizards were seen in the rocks at the end of the flat, and none in the canyon proper. One was seen in isolated granite boulders in center of eastern portion of La Laguna. Willows grow in several small patches along the two streams (springs) in the southern side of the eastern portion and in the canyon exit in the east. The canyon exit contains the largest amount of running water in the area and the stream flows over small falls and into pools for at least 300 yds down the canyon. Willows grow in patches through the canyon at the edge. [See map pg. 117]
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Quast 1948 Journal 113 June 11 La Laguna, 6200-ft., Sierra de la Laguna, Baja California of the pools and among the large granite boulders. Quite a bit of grass grows along the stream and numerous composite plants, and one patch of Maiden-hair fern was seen. Very little leaf mould in this area. Set 50 Museum Special traps baited with walnut this evening among willows in canyon exit. June 12 Same Location. Minimum temperature last night was 55° F. Shot bats last evening at dusk and obtained one Eptesicus fuscus. Others obtained Tadarida mexicana, Dasypus egg, and Pipistrellus hesperus in addition. Bats did not appear until about 7:30 P.M. and were first seen feeding around and over the wooded hill. It was not until later that they descended to feed around the edge of and on its flat. 49 traps set last evening in willows in canyon exit caught two Peromyscus eremicus and two Peromyscus truei. One trap was missing, the string only remaining, and was probably chewed loose from its tie-cord by a trapped Neotoma. Three, trap- ping further down the canyon caught the same species. Three additional Mexicans appeared last night and stayed for dinner and breakfast this morn- ing. All carried rifles and were presumably hunting for deer although the season is closed
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Quest 1948 Journal 114 June 12 La Laguna, 6200-ft, Rivera de la Laguna, Baja California at this time. One told us that each family gets an average of two deer per month throughout the year from this region. Was told today that it snows occasionally here. The time of snowfall is usually in February, and very little at a time; it usually snowing at night and all melting the following day. Dr. Beron caught one of the Mexican's dogs in a steel set last night. The dog started howling at 11:00 P.M. and was subsequently released. Despite its spindly condition of the small dog it suffered no more than a very slightly bruised foreleg and was perfectly normal the morning. Neotoma lepida are common here being caught in prickly pear patches in th flat and along the stream near camp. Tevis caught an Alligator lizard along the banks of canyon exit stream yesterday. I have seen the following birds to date: Plumbecous grnatcatcher feeding in oak trees on north side of La Laguna. Bush-tit - common in oaks and willows - very tame. California Woodpecker - several seen in dead pine tree near stream exit. Junco - very common - seen mostly feeding in and around sparse composite plants in
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Quast 1948 Journal //5 June 12 La Laguna, 6200 ft., Sierra de la Laguna, Baja California. The flat and in and under oaks and pine trees at periphery of flat. These birds are very tame and can usually be approached to about 10 feet. Several come into camp and scratch in the leaf dbris 4 feet from myself and a sleeping dog. Robin - very common in trees bordering field and especially in trees and willows along stream. Solitary vireo - one seen in Madrone tree over camp. Raven - several seen. Plain titmouse - tame and inquisitive - several seen in willows along exit stream. Red-tailed hawk - probably one individual seen several times flying over flat. Mourning dove - several seen in flat. Band-tailed Pigeon - common here, especially in trees near water. Several flocks of about 10 seen flying among oaks on sea-side of ridge. Olive-green swallow - a few individuals seen in late afternoon around pools in flat and at dusk over pools and feeding just before bat-time over oak forest. Killdeer - three or four in flat among sparse composite plants by camp. Also seen tame, making a lot of noise when approached and continuing to do so while keeping about 10 yards ahead of the walker. Black Phoebe - one seen flying about stream
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Quart 1948 Journal 116 June 12 La Laguna, 6200' ft., Sierra de la Laguna, Baja California as it leaves the flat. Maximum temperature today was 83° F. The Mexicans shot three more deer this afternoon. The creek at the exit of the canyon contains many frogs, tadpoles, and a few very small fish estimated to be 1.5 inches in length. As one progresses down this creek, the willows become further apart and the stream bed sandy with large granite boulders and boulder outcrops interrupting its flow. At a point where the stream starts dropping from the flat a water-flow station has been built. It is composed of a dam with a V-shaped opening in it in which a measuring stick has been inserted. A larger gauge-stick is also on the canyon wall. Spotted Towhees are very numerous in the vicinity. All were seen in the forest, many of them scratching in the leaves below the trees in the same manner noticed in Strawberry Canyon at Berkeley California. Their song and chip-notes struck me as being slightly different. Two Mexican boys brought a young Red-tailed Hawk into camp this afternoon and said that they had obtained it from a tree. They took great joy in tormenting
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Quart 1948 Journal 117 June 12 La Laguna, 6200' ft., Sierra de la Laguna, Baja California Ridge N Spring Ponds Forest Ridge. Stream exit Apprx. 1 mile Ridge La Laguna Camp Wash Stream Meteorological No Station Buildings xx Apple tree Dry wash Meadow Forest Ridge Trail to Todos Santos
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Quest 1948 Journal 118 June 12 La Laguna, 6200+ ft, Sierra de la Laguna, Bajo Calif. it by swatting it with sticks and their hands. Dr. Benson finally interfered and released it away from camp. June 13 Same Location Minimum temperature last night was 51° F. Shot bats last night and obtained 1 Tadarida mexicana, 1 Pipistrellus hesperus, and 2 Eptesicus fuscus. Found that the Dasypeltus spp and Tadarida mexicana would feed in the western area of the flat over the flat and not along the forest border as the Eptesicus fuscus and Pipistrellus hesperus. I can find no explanation why the bats were much more numerous over the western section of the flat at dusk than they were over the eastern section where ponds and running water exist. The bats appeared at 7:20 last night, all species being seen within 10 minutes. 49 Museum Special mouse traps baited with walnut and set along stream exit canyon among willows and grass caught 2 Peromyscus truei with no other traps disturbed. No other shrews have been caught subsequent to Keith's (Murray) Departed La Laguna about 10:30 June 13 Todos Santos, 50+ ft, Baja California Shot bats this evening that were flying over sugar-cane fields and around palm trees
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Quest 1948 Journal 119 June 13 Todos Santos, 50 ft. Baja California about 200 yds NW of town. A small stream for irrigation flows in the fields here and the bats, particularly the Tadarida mexicana and Lasiurus ega, congregated over a spot where the sugar cane fields met the palm trees, other trees, and the stream. The bats were flying at 7:15 and continued doing so 'till dark. I shot two Tadarida mexicanos of which one was soot black; presumably from roosting in a chimney during the day time. June 14 Mina Palmar del Medio 400 ft 4 mi ESE Pescadero Baja Calit. Camped last night on the playa south of Todos Santos. Minimum temperature there last night was 59 F. Visited a mine at the above location this afternoon. Pescadero is a small village south of Todos Santos, the principle industry of which seems to be raising sugar cane and corn. The road to the mine we investigated turns off the main road about 2 miles south of Pescadero and leads into the foothills of the La Laguna mountain. The mine was located on an abandoned road about 500 yards south of a small canyon containing a dozen palm trees from which the mine was named. It consisted of a single horizontal shaft about 75 yards in length and curved in an arc so
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Quart 1948 Journal 120 June 14 Mina Palmer del Medero, 400+ ft, 4 mi ESE Pescadero Baja California that it formed another exit on another side of the low-rounded hill containing it. The center of the shaft broadened vertically into a small slope and was diagonally braced with timbers and roofed with wood in several spots. Many Macistus californicus were seen and caught and found to be of both sexes. The Macistus were first seen about 20 feet from the opening. Previous to visiting this mine another was investigated that lay on the opposite side of the hill about one mile north of the above. It was located on the north-facing slope of the hill and was made up of an angled trope of about 75 yds length and going down through three rough levels an estimated 80 feet. The slope was at an angle of about 50° to the horizontal and in a dilapidated condition, numerous cave-ins being noted. Murray netted five Natalis mexicanus near the lower- most and almost inaccessible level. The Natalis were noteworthy in the fact that they were all brilliantly colored from a bright orange-brown to a brilliant orange. Larger bats (Leptonycter?) were also seen
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Quest 1948 Journal 121 June 4th Nina Palmer del Medio 400'ft 4mi ESE Pescadero Baja Calif. but none were captured. No surface water was seen in the vicinity although it is possible that it existed in an arroyo about 2 miles east of the location. At the foot of the large furrow in the hill caused by the mining operation lie several large rock and concrete tanks, completely dry, and the remains of several adobe and brick buildings. A lime kiln is visible from the mine being about 1 mile east of it SW on a south-facing slope in the center of a large white hillside. A granite or grays quarry lies above this and east of it. June 15 La Paz, Baja California Arrived here about 10:30 p.m. after a rapid but rough ride over the badly corduroyed road between here and Todos Santos. Slept last night in a wash 15 miles this side of Todos Santos. Minimum Temperature last night: 63°F. Raining in the south in region of La Laguna early this morning and a few sprinkles where we slept but clearing towards noon. June 16 Same location. Slept about 1 mile south of La Paz last night by roadside. Minimum Temperature 68° Soldiers are stopping trucks from the south to search for contraband sugar. Wind last
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Quas 1948 Journal 122 June 16 La Paz, Baja California night the road north of Mulege was washed out the day before yesterday by a rain storm. June 17 Wend Llano de Nirey, 50+ ft. Baja California Arrived here about 6 P.M. yesterday after driving from La Paz. Minimum temperature last night was 53° F. No bats seen last night at dusk. We are camped on the border of a large circular lake bed that evidently contains water only after heavy rains. A large connected series of these beds occurs in this area, the road passing through many of them. This location has a bed about 1/2 mile in diameter, appearing absolutely flat in its center and surrounded on all sides except the eastern with low sand dunes sparsely covered with Opuntia cholla, Cardone, Ocotillo, and a few desert shrubs. On back of th. dunes more dense desert vegetation occurs. The playa is made up of dark silt and profusely covered with large mud cracks up to 10 inches deep. Growing in this soil are short bushes and plants of from 3 to 12 inches in height quite densely in most of its area. All these have been trampled by cattle and are dry at this time of year. Surrounding the playa is an intermediate area, between th. sand dunes and th. dry mud, covered with sand but having isolated hilltops.
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June 17 W. end Llano de Hiley, 50+ ft., Baja California on which the small dry plants having been [illegible] growing in tufts. Within these hillocks numerous mouse-burrows may be seen and their tracks are abundant in the sand around the hillocks. 47 live traps baited with bird-seed and set in playa and intermediate area last night caught 21 Perognathus baileyi. Dr. Benham set his live traps in the same habitat and obtained one Peromyscus maniculatus in addition to two Pero- gnathus baileyi. Tevis and Murray, trapping in the sand dunes caught Dipodomys agilis + merriami and Perognathus baileyi + arenarum. I caught one Dipodomys merriami in a rat trap baited with walnut in the sand dunes last night. June 17 Pozo Grande, 25°46'N, 112°02'W, Baja California Arrived here about 6 P.M. after a fast trip from the previous location, leaving there about 1:30 P.M. Had dinner at one of the houses and then went down to the pool to hunt bats. Found the large pond in about the same condition as it was previously, the water being a little lower and of a darker green color. The first bats seen were at 5:30 PM and turned out to be Eptesicus fuscus which were flying low about the Mangle dulce, Mesquite, and other bushes in the wash. Many were seen flying down the wash and struggling into a
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Quast 1948 Journal 124 June 17 Pozo Grande, 25°46'N, 112°02'W, Baja California strong breeze from the west. While feeding in the manner they made excellent targets and I obtained five and Dr. Benon eight. At 7 PM many Purple Martins and Violet-green Swallows were feeding above the pond in what almost it appeared to be a cloud of birds. They disappeared just at late dusk 7:30 and the bats appeared. At sundown many Nightlows were seen, some flying very close to us and drinking from the pond while in flight. Despite their flying within five feet of us no sound of air in their feathers was heard. At dark about ten ducks flew over the pond and attempted to alight but were frightened by our presence. We were disappointed to find that very few Myotis yumanensis were to be seen around the pond. Last time we were here they were very plentiful, feeding in a large group low over the water and among surrounding bushes, but this time only four or five seen and only one netted (by Tevis). White-winged doves and Mourning doves were also common before dark. June 18 San Jorge, 5+ ft. 25°44'N, 112°07'W, Baja California Drove the short distance between here and Pozo Grande this morning before breakfast. Minimum Temperature last night at Pozo Grande was
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Quast 1948 Journal 125 June 18 San Jorge, 5° ft 25°44'N, 112°05'W, Baja California 51° F. Maximum temperature was not taken. But today, but it has been cool and pleasant with a steady breeze blowing from the sea. Set out 48 live traps baited with Bermuda-grass seed on hill east of camp this evening. Traps were set among Ocotillo bushes, heavily parasitized with Ocotillos, Lumboro, and Pitayas agria. There is abundant mouse-sign in the sand among the above-mentioned vegetation. Looked for bats this evening, but none was seen by the group. June 19 Location. The 48 live traps caught 2♂ Dipodomys merriami, 10♂, 8♀ Perognathus arenarius, and one ♀ Perognathus baileyi; and 50 Museum specials set in flat north of camp among Mangl. Dulces caught 7♂, 3♀ Perognathus arenarius and six Perognathus baileyi. Those specimens caught in the Museum Specials were badly eaten by ants and only the skulls were saved. Minimum temperature last night was 63° F, maximum today was 79° We are camped by a fisherman's shack on the east bank of the large estero here. The estero is about 800 yards wide and appears to be about ¾ mil in length, and is bordered by Mangroves in practically all its extent. See map pg. 130
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Quart 1948 Journal 126 June 19 San Jorge, 50 ft, 25°44'N, 112°07'W, Baja California. The only places visible from camp where mangroves are not growing is this place and the southern outlet of the estero. South of camp about 75 yards a large patch of Mangroves occurs that is circular in outline and of approximately 50 yards in diameter. Despite the fact that the area is flooded at high tide, Museum special traps set in the area last night by Dr. Benson & Murray caught some Peromyscus maniculatus. The hills on the east side of the estero are mainly of yellowish sand and shell and grown with clumps of Ocotillo, Pitaya aquia, Cholla and Limboi. By far the greatest number of plants is the Ocotillo which is covered with the moss-like Orchillo parasite. Clear sand that is quite firmly packed occurs between these bushes and at this time is heavily covered with the tracks and burrows of pocket mice. The north end of the estero ends in mangroves beyond which is a sandy flat continuous with the sand dunes on the west side. To the south and at the estero outlet small sand cliffs are visible apparently where the tidal waters are undercutting the sand dunes. This estero is supposed to be the
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Quast 1948 Journal 127 June 19 San Jorge, 5 f ft, 25o 44' N, 112o o7' W, Baja California northernmost of a series running down the coast from here southward. Birds seen to date: Caspian (?) Tern, White Ibis, California Jay, Brown Towhee, Plumbeous Snatche, Semi-palmated Plover, Osprey, Raven, Vultur, Caracara, Purple Martin, and Reddish Egret. California Jays are common here in the Mangroves and "Mangle Dulce." They are most frequently seen in the vicinity of these plants which border the estero. Tevis said this after - noon that he had seen them eating the small red berries of the "Mangle Dulce" and I witnessed them eating some small crabs of about 1 in in length on the mud beach. The mud areas around the Mangroves abound in crabs and I have seen at least four types all of which live in burrows in the mud. The Mangroves vary in thickness from five feet in the thinner portions of the border to fifty or seventy five yards. Heard a clattering sound from the Mangrove across the estero this evening which Dr. Boren said was a Rail. Have seen no grass or salt-grass so far in the region of the estero. Small patches of salicornia occur in the flat places just
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Quest 1948 Journal 128 June 19 San Jorge, 5 ft., 23°44'N, 112°07'W, Baja California above the high tide marks. A region of "Mangl Dulce" occurs in back of the mangroves, and a small, dense, thick-leafed bush from 8 inches to two feet high (Tumble-like weed: Lamb) occurs in flat areas between the small sand cliffs and the sand region. Dr. Benson and I fished this evening off the beach next to camp and in about 1½ hours caught several Catfish, a very small Hammer-head Shark, a shovel-nosed Shark and several other kinds of scaled fish. Clams occur in abundance in the mud and cystica of approx. 3 in diameter are common on the Mangrove roots. June 20 Same Location. Minimum temperature last night was 62°F, maximum today was 76°. The weather has been clear with an ocean breeze coming up at about 11 AM yesterday and today. 50 Museum special traps baited with walnut and set along this mangrove strip north of camp caught 19 Peromyscus maniculatus last night. Traps were set under the Mangroves on the dead Mangrove leaves at the high-tide marks. 48 live traps set among Ocotillo and Pituais agria clumps in hard-packed sand N.E. of camp last night caught 19 Dipodomys
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Quart 1948 Journal 129 June 20 San Jorge, 5° ft, 25°44'N, 112°05'W, Baja California merriami, 1 ? Perognathus baylei, and 4♂+4♀ Perognathus arenarius. Murray, trapping in the same area, caught 1 Dipodomys agilis in addition to the other species. Dr. Benson caught 1 Canis latrans in a steel trail-set last night. June 21 same location Minimum temperature last night was 60°F, maximum was 77° today. Set 50 Museum special traps in bog by mangrove at north end of estero last night, and caught 3♂+1♀in♂Peromyscus maniculatus. None of this species was caught in the bog proper but rather along the "Mangle Dulce" and Mangroves. 50 live traps were set on dry ground along line of "Manglo- Dulce" in the same area and caught 3 Perognathus arenarius. The line of "Mangl Dulce" referred to spilled the Peromyscus manicula on its left, in wet soil and the Perognathus arenarius on its right on the dry soil. Dr. Benson caught 2 Canis latrans in trail set at point where bog, mangrove, and line of "Manglo Dulce" meet. The flat has many well-worn Coyote trail on it and dey were heard howling last night for the first time ever. Tevis caught one Perognathus baylei on the flat at the north end of the estero with
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Quest 1948 Journal June 20 San Jorge, 5 ft 25°44'N 112°07'W, Baja California Beach Sand Dunes Sand Dunes cardones Sand Cliffs Mangroves Flat Bog Mangle Dulce W W W W W W W W W W W W W Mangroves Approx. 300yds. Camp Fisher-man's Shack W W W W W W W Bog Mangroves Ester-o Hill Oatillo, Rhayagrings, Kumboi, Frutia, etc. Road to Pezo Grande Sketch Map of San Jorge N 130
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Quest 1946 Journal 131 June 21 San Jorge, 500 ft, 25°44'N, 112°05'W, Baja California several Peregrinus arenarius slowing as far as I am concerned that the two share the same habitat at this locality to its fullest extension. One Osprey was seen this morning carrying a fish, head pointed in the direction of flight and aligned with the bird, in both talons. The Osprey was flying over camp in a westerly direction and evidently has its nest inland. It is interesting to note that we have seen no bats during our stay here although we are at most 3 miles in a straight line from Pozo Grande. Every evening just before dark a group of Purple Martins fly southward over camp (from Pozo Grande?). Dr. Benam shot a Brush Rabbit when we were driving on the road between Pozo Grande and here, and I have seen one rabbit of smaller size on the hill east of camp. June 22 San Jose de Comondu, 700 ft, Baja California Arrived here late yesterday afternoon after departing San Jorge about 2 P.M. Good road in this stretch except for a few sandy and dusty spots. Shot bats last evening among palms on floor of canyon near town but saw only two of the larger bats. Many of the
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Quest 1948 Journal 132 June 22 San Jose de Comondu, 200 ft, Baja California smaller size bats were seen and two Pipistrellus hesperus were obtained by Dr. Benson and Murray. The larger sized bats seem very scarce here for very few were seen by the group last night. Tevis caught a Spotted Skunk in a Schuyler baited with Mango and set in the rocks on N. side of canyon last night. Minimum temperature last night was 69° F. Windy in the evening with fog late that night and until 8:30 A.M. this morning Bats started flying at 6:45 this evening with those other than the small ones not being seen until 7:30. June 22 8.3 mi by road N. Canigoli, 26°32'N, 111°35'W Baja California Stopped here and investigated small caves in lark lava conglomerate above the road. One cave ending in a crevice about 10 feet from the outside contained Macrotus californicus only - six were taken by the group. Caves were used by Indians as evidences by shells found there and remains of a red ochre inscription on a rock. June 23 Santa Rosalilito, 25 ft, SE end Bahia de Concepcion, Baja California Arrived at this ranch which is just below the lower end of Bahia de Concepcion yesterday about 6 P.M. The ranch is composed of a shack, a corral, and a small waterhole of very poor water, all located in flatland by a medium sized wash. The
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Quadr 1948 Journal 133 Jun 23 Santa Rosalilla, 25° ft S.F. and Bahia de Concepcion Baja Calif. water hole is small (4 x 6 ft) and about five feet deep, th sides being reinforced at the higher levels by rock siding. The ranch is occupied this time by three Mexicans which have about 20 head of cattle and a few horses and burros - a surprise to us for we had found th ranch vacant at the time of our previous visit. On the surrounding flat sandy land a forest of Cardones grow and are bearing fruit at this time. We tried the fruit but found it un- satisfying - it bursts open when ripe, while on the cardono, exposing its red interior and small black seeds. Shot bats last evening and found radius few flying at dusk. Five or six Eptesicus tuscus appeared at 7:40, flying down the wash and feeding on the lee side of mesquite and Palo San Juan trees. Several of these were obtained, one of which was netted by Murray as it flew low above the ground among the Cardones. At dark went to th waterhole and found quite a number of them feeding about the water and occasionally drinking it. I netted 3 ? Antrozous ming there between 9 and 11:30 and one Myotis californicus which appeared to be sick, it flying very slowly and in an uncertain
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Quest 1948 Journal 134 June 23 Santa Rosalilito, 25 ft, S.F. and Bahia de Concepcion, Baja Caley. manner, finally falling into the water after trying to drink it while in flight. I rescued it with my net. 50 live traps set in sandy flat among Cardons, Mesquite, Saramboulo, and Cholla last night caught one in. O Perognathus arenarius and an O Dipodomys merriami. The others caught was in their live traps, the low catch possibly having been a result of a full moon last night. Minimum temperature last night was 70 F. June 24 1/2 mi South of Mulege, 50 ft, Baja California Arrived here about 5:30 P.M. yesterday and could not drive into town because of high tide raising the water level in the creek bed too high for the cars. Earlier in the day the tide was found to be entering the road in the northern end of Concepcion Bay. Had a flat tire on the International at the south end of Concepcion Bay yesterday while Dr. Benson was investigating caves in which he found one Gecko. We camped near the road leading past the mission at Mulege. We are about 300 yds from the mission and next to an olive orchard that is being irrigated at this time of year. We are about 100 yards from the pond above the Mission.
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Quart 1948 Journal 135 June 24 1/4 mi South of Mulege, 50' ft, Baja California Shot bats last night by the palm tree at the border of the pond above the mission. They appeared about 7:20, the first being seen were small bats (probably Pipistrellus hesperus) flying very high and from the hills. Nighthawks appeared at the same time soon to be joined by the larger bats, Eptesicus fuscus and dasypterus ega. The small and large bats and Nighthawks formed a large cloud over our heads and Pipistrellus hesperus, Dasypterus ega, and Eptesicus fuscus were shot by Tavis and Dr. Benson. Just before dark the cloud of bats disappeared leaving the Epterus and Dasystemus to feed singly among and along the palm border. I netted one Eptesicus fuscus at 8:30 last night out of many that were flying along the edge of palm olive trees and over the trail near camp. Visited the large bat cave about 500 yards from here in the side of the mountain this morning. Found the number of bats much fewer than at the time of our previous visit. We found about 50 Macrotes californicus in the second room of the cave and obtained one Leptonycteris and one A.... Momopops megalophylla. Another cave said to be nearby was not investigated.
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Quest 1948 Journal 136 June 24 1/2 mi South of Mulege, 50+ ft, Baja California At the opening of the cave investigated in which Mormoops megalophylla, Leptonycteris and Macrotus californicus were found was found purple blotches on the rocks below an over- hanging piece of the cliff. It looked as though it might have been fruit stains from pieces of some kind of fruit brought there by one of the bat species. Minimum temperature last night was 69° a clear, still night with no overcast. High humidity here last night and a few mosquitoes adding to threat of Malaria. Departed here about 12:30 PM. and arrived at Santa Rosalia about 6:00 PM after spending two or three hours on the desert between the two towns trying to fix an oil line on the Dodge that had been broken by vibration. The repairs were only partially successful and the Dodge will have to go into the garage tomorrow. June 25 Santa Rosalia, Baja California Arrived here about 6:00 P.M. yesterday and were delayed an hour at the southern outskirts of the town for a diphtheria examination. It is said that a diphtheria epidemic is occurring at La Paz at this time. At 7:30 saw many small bats and Dasypterus ega flying along the streets of,
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Quest 1948 Journal 137 June 25 Santa Rosalia, Baja California town (yesterday). Slept near the beach about 1 mile north of town last night. Heard and saw what was very probably Eptesicus fuscus feeding over the brush there. Minimum temperature last night was 71° F. June 26 Los Martires, 300+ ft, 23 mi by road N.W. San Ignacio, Baja Calif. Arrived here about 5:00 PM after eating dinner at San Ignacio (yesterday). The wind was blowing steadily from the sea and a large fog bank was visible at sunset. Shot bats at dusk and obtained one Eptesicus fuscus and one Myotis californicus. The two bats were seen flying low among the brush and cardone, their flight greatly affected by the wind. A cement tank and a long cement watering trough existed at this place and we attempted to net a few bats after dark but were unsuccessful possibly because of the strong wind that was blowing. Several small bats were seen however. Minimum temperature last night was 58° it seeming quite cold in the evening and with a heavy fog overcast on the desert until 9 this morning. The wind blew steadily all night. Los Martires is no more than a small house with neighboring coral and watering trough and a windmill. It is situated in the flat
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Quart 1948 Journal 138 June 26 Los Martires, 300+ ft, 23 mi by road NW San Ignacio, Baja Calif. desert plain surrounded by Cardone, sand, Cholla, and low bushes. Just south of this place, th first Cirios was seen. June 26 Arroyo San Louis, 800+ ft, 9 mi W Calmalli, Baja California Arrived here just before sunset and investigated a nearby mine called "Minio de la San Louis". It is located several miles from the north junction of its main road and the one leading to Calmalli. and near the latter road. The mine is located on the north side of the arroyo and its tailings are visible from the road. The mine is composed of a horizontal tunnel of about 50 yards length the narrower portions of which are about 4 x 5 feet. Towards the end of the tunnel several small side passages exist and the tunnel roof gets higher, finally connecting with the back end of a vertical slope leading to the surface near the top of the hill. The slope is 30 or forty feet deep and its 6 foot width is braced with cross timber. The back part of the slope is dark where it connects with the rear of the tunnel. The mine has undoubtedly been in disuse for many years, part of the iron rails being torn up, a light barricade being erected within its entrance and what appears to be a corral placed around its entrance. The level of
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Quest 1948 Journal 139 June 26 Arroyo San Luis, 800+ ft., 7 mi W. Calmell, Baja Calif. the horizontal tunnels at least 40 feet above that of the wash and arroyo it faces. We entered the mine about an hour before sunset and noticed bats flying when we had traversed 1/3 its length and had entered complete darkness. Upon pursuing the bats down the tunnel we finally reached the end and a side passageway near the end which when blocked off yielded several Choeronycteris mexicana. Both lactating females and young bats, 3/4 grown, of this species were obtained. Also obtained this afternoon were three Corynorhinus, two of which were picked off the rough 5 1/2 foot tunnel ceiling about half the distance from the entrance. Both were in a torpid state, their long ears tightly rolled at the sides of their heads. The two were not close together but separated by at least 15 feet and were not disturbed by our passing underneath them with flash- lights - our not noticing them until we had passed one, the other being collected on the way out. One was obtained by Murray with his hand net. One Myotis californicus was seen but flew past us out of the tunnel entrance into the daylight. The four of us then climbed the hill to
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Quest 1948 Journal 140 June 26 Alvergo San Louis, 800+ ft, 9 mi W. Calmalli, Baja California investigate the vertical slope from the surface. The slope was found to narrow in length as it approached the surface, the actual entrance being about 6 x 8 feet. Across the opening a large trancing timber was firmly placed and others were visible below widely separated. As I approached the opening I saw several large bats flying below which were probably Choeronycteris mexicana. Dr. Benson lowered himself into the slope and immediately scared out a large Brown Owl which flew back into the darkness of the slope interior. He subsequently scared out one Choeronycteris mexicana which I definitely recognized as it flew past me and three Myotis californicus, one of which was knocked down by the net and captured. The Myotis californicus of the slopes were not seen until Dr. Benson had fired several shots into the slope interior which was inaccessible, and we did not leave until he was climbing out the opening - this species seeming very reluctant to fly and leave the shelter. The last Myotis californicus made repeated attempts to enter the opening of the horizontal tunnel further down the hill which was being
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Quest 1948 Journal 141 June 26 Arroyo San Louis, 800+ ft, 9 mi W Calmelli, Baja Cal. blocked by Tavia. It was sunset when we left the clippings to shoot bats in the arroyo. Only one bat was seen this evening and that a very small bat flying quickly across the sand surface at about 4 foot elevation. It was too dark to shootly [sic] this time. June 26 Mina Sol de Hito, Calmelli, Baja California This mine was visited earlier than the location above (about 3:00 P.M.). Mina Sol de Mio is an abandoned mine found near Calmelli on the road between Calmelli and El Arco. This mine is characterized by very large tailings and occurs next to the road in the hillside. This mine has also been in disuse for many years judging from the rusted machinery on the surface and a partially dismantled stamp mill. Two tunnels were visited, one at an elevation of about 60 feet above the road bed and with large tailing pile in front of it and another which was about 100 feet north of the first, at road level, with few tailings, and the tunnel protected by a partially closed iron lattice door. The first tunnel was investigated and found to be blocked by partial earth fill in its.
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Quast 1948 Journal 142 June 26 Mayo Mina Dol de Mier Calmalli, Baja California entrance with enough space left at its top for one man to squeeze through at a time. We entered the tunnel and followed the iron cart rails until a vertical shaft was reached about 150 feet back in the mine. The shaft dropped for five or six levels, perhaps more, it not being mines - targeted at the lowest ones. One or two large bats were seen when we reached the end of the cart line but they were not obtained. They others went down the shaft and while waiting for them I noticed a small crack in the roof above the shaft that had been closed by wooden planking. Several bats flew into this area but were not identified due to the fact that my flashlight was not working. Attempts at netting them as they flew by in the dark were futile, but they seemed to be very nervous and restless due to our entrance and the noise of the others of the group investigating the lower levels of the mine. Only one bat was obtained here and that by Tevis down in the lower levels of the shaft. It turned out to be Macrotus californicus. We then investigated the tunnel north of and below the first one. As we passed through the iron gate at its entrance, we disturbed hundreds of large flies, but were
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Quart 1948 Journal 143 June 26 Mina Sol de Hor Calmelli, Baja California passed them when we had passed about twenty feet and the mine became dark. At 50 feet (approx) from the entrance a small side passage occurred in which two Choeronycteris mexican were seen, one of which was obtained. Two more were obtained at the blind end of the main tunnel about 100 feet from the entrance. The tunnel was small, of about 5 ½ feet in height and about 4 feet wide throughout its extent. It contained only one side passage of any importance and turned at right angles to its left about 20 feet from its end. We departed for Arroyo San Luis. June 27 Arroyo San Louis, 800 ft, 9 mi W. Calmelli, Baja Calif. For description of mine see pgs 138-141 of Journal. Arrived here yesterday afternoon. Minimum temperature last night was 50° F. Arroyo San Louis is a large sand wash flowing from the direction of Calmelli towards the plain at the foot of the mountains, roughly ENE by WSW. At the point where the mine is located the wash leaves the rocky lava hills and flows out onto the plain west of them. A truly surprising amount of game occurs at this location which is densely covered with cactus and leafed vegetation. Birds seen here: Plumbeous quailcalky, Barn
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Quast 1948 Journal 144 June 27 Arroyo San Louis, 300± ft, 9 mi W. Calmelli, Baja California Owl, Purple Martin, California Gnat, Ash-chested flycatcher, White-winged Dove, and Olive-green Swallow. Brush Rabbits and Jack Rabbits are very common, the Brush Rabbit being seen mainly among the denser vegetation of the wash and bordering areas, the Jack Rabbit among the dense Ocotillo, Phaya aquia and Cholla vegetatio of the area bordering the wash. Coyotes were heard yapping and howling in loud confusion this morning before sunrise a short distance from camp and Dr. Benson caught one in a single steel set he put out last night. Lewis caught one Gopher last night. I revisited the horizontal tunnel of the mine this morning and obtained two Chaunmyctris mexicanas; a female with a very large embryo and a jivenil about 3/4 grown. I was unsuccessful in looking at the soft sand portions of the wash in finding one square inch of sand that had not been disturbed by some mammal, bird or reptile. From the looks of some of the new cuts in the arroyo banks it must have had water flowing in it within the last two or three years. June 28 Santa Rosalia, Baja California Arrived here this morning after having the
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Quart 1948 Journal 145 June 28 Santa Rosalia, Baja California Dodge lost a left front wheel. The bearing spindle broke between the threads and the be- ginning of the taper. In addition the shock of losing the left front wheel broke the right front spring (main leaf). Dr. Benson and myself drove from 6 to 12 p.m. yesterday from the location of the Dodge breakdown (24 mi N. El Arco), and from six to 9 this morning. Murray + Tervis were left with all the provisions and equipment and we camped at that location. Telegraphed Dr. Miller at Berkeley for new parts which will probably arrive by plane here on July 2. Saw 2 Brown Pelicans and 4 Cormorants fishing off shore at 8:30 this morning. June 29 Same Location Slept on the beach north of his last night. Minimum temperature was 59° F with high humidity yesterday, last night, and today. Netted one Pipistrellus hesperus this evening at dark as it was feeding among brush in back of beach at place where we have been sleeping (about 1/2 mile north of town, 10+ feet elevation. The Pipistellus were feeding with a larger bat that made a continous "clicking" sound as it flew - probably Eptesicus fuscus. June 30 Santa Rosalia, 10+ ft. Baja California Slept on the beach at same location as above last night. Humidity high, cumulus clouds with
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Quack 1948 Journal 146 June 30 Santa Rosalia, 10° ft., Baja California (Minaka Zonta) lightening to the east over the Gulf at dark. Min- imim temperature 74°. Visited a mine this afternoon lying west of this town in the same arroyo at a distance of about 2 miles by road from the center of town. The name of the abandoned mine is “Mine La Zonta” and it is composed of a single horizontal tunnel of about 4½ by 5½ feet and 100 to 150 yards in length. Its entrance is about 200 yards up a small tributary entering the Santa Rosalia Arroyo on the north side. The entrance had caved in, leaving about a two foot high space through which we had to crawl into the shaft. As we passed down the tunnel we had to traverse another caving at half its length and then a pit about 50 feet from its end. The pit was about 25 feet deep and led to another other lower level which had been blocked by the storm of 1931. When we had gone about 30 yards from the entrance I saw several bats flying away from us into the mine interior. We pursued them to the end of the shaft where we found that their number had multiplied to about 20. We were suc- cessful in netting only three of them which turned out to be Leptonycteris. Upon nearing the entrance, on the way out we saw the large group of bats that had flown past us congregating about the mine entrance, a few flying out. Dr. Benham was
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Quadrat 1948 Journal 147 June 30 Santa Rosalia, 10± ft, Baja California (Mina La Zonta). able to get close enough to net four of them in one swing of the net while they were still hanging and obtained 4 immature adults. In addition one Macrotus californicus was caught there. In this mine the curious red splotches seen on the rocks outside the cave at Mulege were seen again. They are just the right color to be the juice of the Cardon fruit which is ripe at this time. It is possible and probable that one of the two species in this mine carried it in. It was very hot outside and in the mine when it was investigated (about 3:00 PM). We were soaked in perspiration from the slight exertion of walking into the tunnel while bent over. Only one entrance existed to the mine and there was practically no air circulation. June 30 San Luciano, 100± ft, 5 mi S. Santa Rosalia, Baja California San Luciano is a small mining town 5 miles by road south of Santa Rosalia. It is built in the south-facing slope of a large hill and is of the same type and ownership as Santa Rosalia. It is surrounded by the same type of terrain as Santa Rosalia, ie soft sedimentary wave material flooded with the round boulders of alluvial mater- ial. The hills of this river-washed region consist mainly of small boulders embedded in soft silt matrix and support only sparse vegetation; only a few small bushes seem capable of growing in it.
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Quast 1948 Journal 148 June 30 Las Lucias, 100 ft 3 mi S. Santa Rosalia, Baja California. A possible additional cause of the sparse vegetation is the chemical smoke of a copper reduction plant that is in continuous operation at Santa Rosalia. The arroyo that runs east from this place (leading) is of slight gradient and changes from a broad boulder-strown streambed here to sand at its mouth, about two miles east of here, at which a small inlet is to be found. We stopped by the road south of town, between it and a small ranch called Las Cuevitas. On the rise exists a small dam for irrigation pur- purposes that is filled at night but contains water in a very shallow pond all day. The dimensions of the shallow pond was about 20 by 8 feet, & that of its limits when filled about 40 x 15 feet. Next to the pond towards town a cornfield exists in which patches of alfalfa are also grown. Before sunset a few Violet-green Swallows were seen flying about the pond and the scanty Copal & Palo Verde trees at that place. Just after sunset many Nighthawks appeared, some flying a few feet above the ground, some diving and skimming the pond surface to drink, and others circling the cornfield or flying high in the air. Ten minute after the first Nighthawk was seen the first Pipistrellus lasperna was seen, to be followed in ten minutes by
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Quest 1948 Journal 149 June 30 San Luciano, 100+ ft, 5 mi S. Santa Rosalia, Baja California the larger Eptisicus fuscus over the cornfield. to be None of the bats seen were noticed drinking from the pond before darks. Dr. Benson obtained one Pipistrellus hesperus by netting it before darks and shot two of the Eptisicus fuscus that were flying over the cornfield. I obtained three of the latter over the cornfield. At dark we went back to the pond and tried to net some of the bats that were flying about and drinking there. A very audible sipping sound can be heard when they are picking up water. We were unsuccessful at netting any but saw about ten large bats (looked and sounded like Antrozous in flight) that were also circling and drinking at the pond. A half hour after darks the pond was filled from a stream of water and we abandoned the project. July 1 Same Location. Slept in the rocky arroyo bottom last night about # mile east of Las Crevitas. A very warm and humid night with large cumulus clouds over the gulf and lightning. Minimum temperature last night was 80 F. Investigated another mine just a few yards from where we slept and found it difficult to traverse, it having been flooded in the past. Did see bat droppings and purple splotches on the floor about 15 feet from the entrance, but no bats were seen. Returned to Santa Rosalia.
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Quart 1948 Journal 150 July 10 Santa Rosalia Baja California Departed here last night at 7:30 after finally receiving Dodge parts. Minimum temperature for our stay here have ranged between 75 and 81°F. July 11 10 mi S.E. Mesquital 400+ ft. Baja California Departed here this morning at 9:30 after spending yesterday afternoon and evening working on the Dodge bus. Minimum temperature last night was 59°. Heavy fog this morning. July 12 24 mi N.W. Punta Prieta 2000+ ft. Baja California Arrived her yesterday afternoon at about six. We camped beside road next to a very small deserted shack and about 100 yards from a delapidated coral. To the east of us rise the sierra de Calamajú and the flat sandy terrain over the approx. 5 miles distance between our camp and the hills is fairly well covered with Agava, Yucca, Cardone, Cerio, Mesquite, Creosot, Saramboullu, Cholla, and numerous small bushes. Just west of us is a small rocky hill covered with Encelia, Yucca, Elephrium, Barrel Cactus, Pitaya agria, Cerio, Mesquite, and small shrubs. West of this small hill, larger ones are seen to continue to the north and large lava out-crops are common on all of them. The mountains to our east and the hills at our west border a flat valley that appears to run directly North-South in direction. Shot bats last night and obtained one
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Quest 1948 Journal 151 July 12 24 mi N.W. Punta Prieta 2000+ ft. Baja California Tadarida femorosacca (?) #451. This bat was flying very high at late dusk and was heard before it was seen, it uttering a very high piercing note continuously while in flight. The note is so high in frequency that it is almost inaudible but of such a character to be uncomfortable to hear. If this is the only bat uttering this note it is common throughout the peninsula south of here, this particular note being heard after dark at almost every camp at which we have stayed. 50 live traps set among rocks on small hill just west of camp last night caught one male Peromyscus eremicus. Traps set by others in the sandy flat valley floor caught Dipodomys agilis and merriami, Peromyscus maniculatus, and Perognathus aureus. Other bats obtained last night while shooting at dusk were Pipistrellus hesperus and Eptesicus fuscus. Very heavy fog and strong wind from the south this morning making the earlier part of the morning damp and quite uncomfortable. Minimum temp. last night was 50° F. Fog clearing at 10:00 A.M. July 13 Caterina 1850+ ft. Baja California Arrived here about 6 P.M. yesterday after 9
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Quast 1948 Journal 152 July 13 Catalina, 850+ ft., Baja California hot trip from previous camp. Minimum temperature last night was 55° F. Catalina is a small ranch located above a sandy wash. The ranch is surrounded on all sides by granite boulders of all sizes and the soil is gravelly, being of decomposed granite. Four or five large mesquite grow around the houses and about fifteen palm trees some of which are very tall grow in the wash and in a small gulley south of the houses. The earlier ranch is located about 300 yds down the wash (west) and it is owned by the father of the proprietor here. Water occurs here in a small pond formed by a dam in the gulley 200 feet south of the house. This water is used for irrigating a few squash plants and fig trees near the main wash. Water is at the present time running down the gulley to the wash where it forms several small ponds before it disappears. Another pond west of the house and near the fig trees is also used for irrigation. Shot bats last night in the wash west of the houses and obtained 4 Pipistrellus hesperus. This species appeared before sundown, a pair being seen flying together down the wash. Murray obtained one Eptesicus fuscus also & Dr. Benson a Dasypeltis egg.
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Quest 1948 Journal 153 July 13 Catalina, 1850+ ft Baja California After dark one Dasypus ega and a Myotis californicus were netted over the pond south of the house. At this pond tules are growing and look Hyla and Bufo punctatus present. Bats were infrequent over this pond last night. Several Western Martins were flying here before dark and Linnets in abundance spent the night in some of the tall palm trees. July 14 La Arenosa, 1600+ ft 10 mi W San Fernando Mission Baja Calif. Arrived here about 7 P.M. yesterday after having blown out on International truck 4 mile west of this place. Minimum temperature last night was 58° F. This place is a ranch that has all appearances of being new. The house is a six room stucco structure and is surrounded by fields that are being cleared at present. Two large reservoirs are present 25 feet east of the house. Surrounding the flat area on which the ranch is located are fairly high hills of volcanic rock and granite overgrown with Cien, Cardon, Cholla, Pitiaya agria, Yucca, Staramboulo, etc. Two bats (Pipistrellus hesperus) were obtained by shooting yesterday at dusk. Efforts to net the few bats that visited the reservoir after dark were unsuccessful.
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Quest 1948 Journal 154 July 14 Visited this mine early this afternoon and did not find the bats as plentiful as our previous visit had found them. Only two bats were seen and both of them were captured. They were Choero- nycteris mexicana and found near the opening of a vertical shaft into the mine. July 15 8 mi N. Rosario, Baja California Was forced to camp here late yesterday afternoon due to the breaking of the right rear spring of the Dodge. Minimum temperature last night was 51°F. We are camped in a small wash in a topography of sedimentary clay and river washed boulder material. The wash runs in a north-south direction and contains but small amounts of coarse sand. The majority of the earth here is of clay and the wash bottom is almost entirely made up of that material and thickly overgrown with a dry bush of about two feet in height. The low hills surround- ding our camp are of clay interspersed with layers of gravel, the west-facing slopes grown chiefly with agave, the east-facing slopes chiefly with low bushes and becoming very dense in some
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Quart 1948 Journal 155 July 15 8 mi N. Rosario, Baja California places. It is believed that we are camped only a few miles east of the ocean. 50 Museum special traps baited with walnut and set along base of hill and along face of hill west of camp caught one Perognathus fallax and two Peromyscus maniculatus last night. All three of these specimens were caught in the low bushes at the base of the hill, the larger portion of these traps which had been set among the denser bushes on the hill slope yielding nothing. 48 Live Traps set in clay soil along trail through dense, dry and low brush in wash yielded but one Peromyscus cremicus (im). Traps set by Tevie in the more open, gravelly, Agave-covered west-facing slope on the other side of the dry wash yielded abundant Peromyscus cremicus. Murray caught one Dipodomyx garvyes in addition to the above-men- tioned species. Several Brush-rabbits were seen here and Murray obtained one Rattlesnake. Lizards were very scarce and only one was obtained, a Cnemidophorus labialis by Tevie. On the whole this locality seems an- attractive from the collecting standpoint,
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August 1948 Journal 156 July 15 San N. Rosario, Baja California mammals, birds and reptile seeming very scarc. The hard-packed clay soil and the dry, dusty vegetation appear to be poor for wildlife. No American Ravens or Vultures were seen during the approximate 1 1/2 days of our stay here. July 16 Location Minimum temperature last night was 53°, a cold wind and fog being experienced in the evenings and mornings of both nights. Dr. Benam arrived here yesterday afternoon with the partially repaired spring and we are ready to leave this morning. July 17 International Boundary, Tijuana, Baja California Had no trouble in crossing over into the U.S. this morning, neither truck being inspected. The whole procedure lasting about five min- utes.
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Species Accounts Birds
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Quest 1948 American Raven April 11 Punta San Felipe, 50+ ft, Baja California Six seen flying around camp yesterday, two this morning at 6:30 A.M. One was shot by Dr. Benson yesterday and had a mottled appearance to its feathers which Dr. Benson said was probably due to malnutrition in the past. April 29 Mission San Ignacio 500 ft Baja California Common, and appear to be associated in pairs at this date, from El Marmol to this place. May 3 Mulege 25+ ft Baja California One seen this morning in front of jail! One seen in garbage dump south of Santa Rosalia
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Quart 1948 Cactus Wren April 17 Cerro Prieto 30 ft 20 mi SSE Mexicali, Baja Calif. One heard singing for last hour from top of mesquite tree bordering large flat 75 yds from camp. Song a metallic warble of 4 seconds duration given between 5 second in-tervals. Bird is perched on highest part of tree and lifts head when singing. Preens itself occasionally between songs. When approached bird flew to another mesquite 50yds distant, but returned when I went back to the camp. Bird does not shift position or di-rection during this period of observation. Time 10:40 AM, Temp. 90°F. A sultry day with mild fluctuating breeze & high overcast. From its perch bird can overlook the whole flat, our camp and all of the N side of Cerro Prieto. Bird just shifted position to another twig on top of same tree, looking in opposite direction.
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Species Accounts Mammals
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Quast 1948 Balantiopteryx plicata June 2 Cerro Cirildo, 600+ ft, 4 mi N San Jose del Cabo, Baja Calif. Eight ♂ and two ♀ put up today after they were caught at above location by Drs. Benson and Tavis. Both females had one embryo of 14 mm. June 5 9mi S.W. San Jose del Cabo, 300+ ft, Baja California Visited cave here located in weathered granite outcrop at an elevation of about 300 ft (estimated). Cave faced approximately north and was about ¼ mile from the ocean. It was found to be approx 15 feet long and twelve feet high and pear shaped in cross section, tapers being at its top and broadening to about 4 feet at its entrance base. One could see directly from the entrance to the back and it was one of the most open of caves containing bats that have been visited so far. About 20 of this species were seen in the back of the cave in a pot hole in its top. They flew when approached and only four were obtained. Two flew into a long crevice at the cave's rear but escaped by us. The floor of the cave contained many droppings and its walls were damp from urine in several places about 3 feet in diameter. Large wings of flying insects were visible on the floor, but our guide said that the cave was also visited by bats of a larger size. Put up one of four caught - ♂ # 312. June 5 1mi N Cabo San Lucas, 20+ ft, Baja California One shot by Murray last night as it was flying
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Quest 1948 Balantioptrys plicata 2 June 6 1 mi N Cabo San Lucas, 20 ft., Baja California along evergreen ledge by camp. It was obtained about 7:15 PM.
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Quest 1948 Mormoops megalophylla May 4 ½ mi South of Mulege, 100+ ft. Baja California. Six or eight caught by cave in mountainside about ¼ mile north south of the mission at Mulege. The one specimen I put up was a male (#13). The Mormoops were associated with Leptonycteris (?) -put up by Dr. Benson, and Macrotoys californicus. Bats were in second room of cave (see journal pgs. 48 & 49 for description). June 24 Same Location. Revisited above cave this morning and found only one of this species. One Leptonycterus and about five Macrotoys californicus were captured, but the latter were released. The cave had far fewer numbers of bats in it this time, only about 50 Macrotoys californicus being seen and only one of Mormoops megalophylla and Leptonycterus each (also caught).
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Quest 1948 Macrotes californicus 1 April 17 Cerro Prieto 30ft 20mi SSF Mexicali Baja Calif. One caught by Dr. Benson in abandoned bamboo shack 50 yds from irrigation ditch situated in mesquite thicket. Bat was confused by flashlights (caught approx 10:30 PM) for it did not fly out of the large holes in the walls of the shack but circled within for about 5 minutes while Dr. Benson tried to net it. It was caught last night after seeing a few scattered large bats flying at dusk. April 29 Mission San Ignacio 500 Baja California Three caught by Dr. Benson in buildings attached to the mission at 10:15 P.M., to- night. Specimens were hanging from the domed stone roof singly. Three more caught (11:00 P.M.) by Tevis & myself in same stone domed room. Were hanging from roof. About five in all were in the room. Specimens put up by Dr Benson, Tevis & Murray. April 30 9:00 PM Three Macrotes found hanging in unused room with two openings to outside. They were very adept at flying up to the stone roof and hanging thus, wings separated from the body and hanging parallel to each sides while they gazed downward and occasionally wiggled their ears. One
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Quast 1948 Macrotes californicus 2 April 30 Mission San Ignacio 500 ft. Baja California. was captured in a hand net by Murray and we took it outside to see if it could take off from level ground, having heard that some bats need to drop to start flying. The Macrotes was placed on flat ground and it immediately took off without any apparent difficulty although it must have been tired from being pursued about a small room for five minutes. The three Macrotes were in the same room that Mystia yumanensis were captured in last night. Very little if any eyeshine was detected in the light of the flashlight from the bats about 5 ft away. May 5 Bats May 4 1/2 mile S Mulege 12+ ft. Baja California. [Written at Baki's Concepcion] Ten or twenty taken by group in large cave in backs of mission. Associated with Mormoops megalophylla and Leptonycteris. Bats were hanging in second room of cave about 150 feet from surface. I put up three males (#128, 129, 130). May 20 La Jolla, Calif. about 20 seen in large mine about 2 miles by road back towards Triunfo. They were hanging in a spot about 50 yards from the
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Quast 1948 Macroctus californicus 3 May 20 San Antonio, [illegible], Baja California. entrance and in a place where the air could be felt to be circulating. Upon being frightened at our approach all but four of the specimens flew back to an inaccessible part of the mine. Four flew towards the entrance, three of which were captured by the group later. May 20 1 mile E of San Antonio, Baja California [illegible] About 80 of this species caught today in a mine at about this location. The mine is situated in a hill covered with Palo blanco tree and occurs where the general direction of the road changes from about East to South on the east side. The mine was composed of a horizontal tunnel at road level with several blind passages leading off it and a main vertical (45°) passage that led from the main horizontal shaft to an opening in the hill about 200 ft higher than the first one. Near the upper opening are three blind passages in which the late of this species and also 'Leptonycteris' were caught. Both types were found in the same passages but they were disturbed when we reached them. They were in the passage closest to the outside on the upper level when discovered (About 5:30 P.M.) and flew to the interior when disturbed by a shot by Dr. Benson. Both types were captured by chasing them
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Quest 1948 Macrotus californicus 4 May 20 limit of San Antonio, Baja California into a blind tunnel and then closing off the exterior with a large mosquito net braced with hand nets and sticks. I put up five males (# 230-234 incl.) of the 26 ♂ & 35 ♀ living the next morning. (When May 21) written When a number (approx. 8) of the Macrotus were released the following morning they made attempts to group together, two following another lead through the sunlight brush already quite warm from the sunshine. They made attempt to hang up in the shady portions of large cactus and brush, but seemed quite uncomfortable in the morning heat. Several of the bats returned to the Dodge in which during the night they were kept, two actually banging them- selves into the closed windows of the cab. One was seen flying across a wash about a mile down the road at noon when we broke camp and left for Buena Vista. Generally speaking, the Macrotus were definitely lost and dismayed by the heat and sunshine. May 23 Buena Vista, 25± ft., 23°38'N, 109°41'W, Baja California about 300 of this species counted in a cave approx. 4 miles S.E. of here (see journal pg. 75). Of these thirty specimens were saved and cataloged by Tevis & Murray. The specimens was caught and counted by placing a large mosquito
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Quast 1948 Macrotus californicus 5 May 23 Buena Vista, 25±ft, 23°38'N, 109°41'W, Baja California net over the cave entrance and then capturing the specimens by hand as they flew against the net. Those caught were put outside the net excepting those saved. An estimated 50 remained in the back of the cave when we left. The Macrotus were noticed to cluster very close together in a tight mass when hanging after being frightened. They bite quite severely at times, being painful if a sensitive spot in the hand is grabbed. When removed from the sack at camp many were noticed to be dead. Many of the individuals were bloody from being bitten by their neighbors, some dead individuals still having their jaws clamped into others with such force that two bats would raise when one was lifted. May 24 Las Cuevas, 23°34'N, 109°39'W, Baja California About ten seen in first cave visited and several hundred in each of the two following caves. (See journal May 24). June 2 6 mi N San Jose del Cabo, 250±ft, Baja California Approx, 20 seen in small cave in small cliff face 100 yards south of camp. The cave is about 20 feet deep and of a size just large enough to accomo- date Dr. Benson on his hands and knees. The bats seemed to be divided evenly between both sexes. None taken.
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Quark 1948 Macrotus californicus 6 June 3 Losi Naran Jose del Cabo, 250+ ft. Baja California Failed to mention yesterday that the Macrotus californicus examined yesterday were perspiring. The bats had been flying about the cave, and with the outside heat, small beads of perspiration were seen on their noses and between their eyes. June 14 Mina Palmer del Medio, 400+ ft., 4 mi F.S.E. Pescadero, Baja California About fifteen obtained here this afternoon from an abandoned mine. The mine was composed of a single horizontal shaft and was about 75 yd. long, bending in an arc between openings on neighboring sides of a hill. The horizontal shaft broadened in its middle into a vertical stope and was braced with cross timbers and braced with planks in the ceiling. When first seen the Macrotus were about 30 feet from the opening, flying back into the mine as they were approached and finally out of the opposite end of the shaft to return to the original entrance behind us. The M. californicus were observed to make no noise when flying except the soft fluttering of their wings. When they returned to the first entrance after having flown out of the other end of the mine they hung within thirty feet of the opening and "peeled" back towards the opening and flying out finally, only a few individual daring to fly past us back into the mine. I happened
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Quest 1948 Macroscus californicus June 14 Mina Palmer del Medio, 400 ft, 4 mi ESE Pescadero Baja California To be standing outside of the mine when one group of about 20 of this species was called out by someone within. I was surprised to see them all group together in a flock and fly over the hill as a unit rather than each in- dividual picking his own way. This grouping tendency was noticed again when Dr Benson released 7 males and 2 females from those he had caught in the mine; when released one by one, the first bat would circle as if lacking confidence until joined by one or two others, and then, as a group, fly to other sections. These bats fly slowly and quietly and seem to use their eyes and ears a great deal while flying. June 22 8.3 mi by road N Campoli; 26°32'N, 111°35'W, Baja California Six taken from a small cave in a lava con- glomerate cliff 50 yds N of the road here. The cave was about 10 feet deep and ended in a large crevice in which the bats were found hanging. About 50 individuals in the colony - no other kind were present. The ? I put up had one embryo of 26 mm. When the bats were taken out of the sacks in which they had been kept one was found to have its tail, uropatagium, and one leg entirely eaten off. A Wood Rat had also occupied the small cave, scattering Cholla thistles about it.
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Quast 1948 Macrotus californicus June 24 ½ mi South of Mulege, 100' ft, Baja California About 50 seen in the cave visited at this place on our trip southward. The 50 seen this time were a much smaller group than the time the cave was visited before. No specimens of this species taken although 1 Mormoops megalophylla and one Leptonycteris were caught. Specimens put up by Dr. Benson. June 26 Mina Sol de Mio, Calmalli, Baja California One netted by Tevis out of a very small group of bats in this mine - see Journal pg 141 for description.
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Quest 1948 Choeronycteris mexicana 1 April 26 Mina La Fortuna, 2350 ft, 2 mi N Laguna Seca de la Baja Calif. One male put up by myself out of 5 adults and three young caught in mine digging at 10:30 PM. yesterday and 6:30 this morning. Bats were in spots completely protected from light and hanging singly. Hanging nearby were Antrozous. June 26 Arroyo San Louis, 800+ ft, 9 mi W. Calmalli, Baja California One female #437, no embryos and lactating, caught this afternoon by myself in horizontal shaft of mine here (see Journal pg. 138 for des - cription). About four more were caught by others of the group. All of this species were caught in the furthest recesses of the mine. Although they were all found in the same area they appear to hang singly. June 27 Locatn: One female, #442, and one immature adult caught by myself in the horizontal tunnel of the mine this morning. Three were seen in a side passage near the end of the tunnel (innermost) of which the above two were caught. The immature adult was released. The female contained one large embryo of 30mm, an interesting fact because of the lactating females and immature adults present. Evidently young are born over quite a long period of time.
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Quart 1948 Choeromycteria mexicana 2 July 14 One female (no embz) caught by myself on our return visit here. Only two bats were seen here and both turned out to be this species. Both were hiding near the vertical opening into the higher portions of the mine, at about 25 feet from the outside. The miners here says that they move their roosting places often during the cooler nights.
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Quart 1948 Leptonycteris (?) 4 May 4 1/2 mile south of Mulege, 100+ ft. Baja California. Several caught in cave about 1/4 mile south of the mission at Mulege. Specimens prepared by Dr. Benson. May 20 1 mi E. of San Antonio, Baja California About 20 caught this afternoon about 5:30 p.m. in an abandoned mine. The mine was composed of a horizontal tunnel with a few blind passages leading from it and another tunnel at an angle of about 45° leading from the horizontal tunnel to an opening about 150 ft. higher on the hill. The blind passages were present near the upper opening, the bats being first seen in the outer- most of them. It is possible that they had gathered there preparatory to flying out of the mine at dark. When disturbed by a shot from Dr. Benson most of them flew back into the interior of the mine. A few of this type and Macrotus californicus were obtained by closing off the outermost passage with a large mosquito net and then catching them by hand. The largest number were captured later by closing them into another blind passage which was closed off with a mosquito net. Of the five females I put up (#225-229 incl.), none had embryos. June 7 Punta Gasperino, 10+ ft., 23°16'N, 110°9'W, Baja California 4 Obtained by Dr. Benson, Levis, & Murray in cave by sandy wash between here and Miquerino. Cave
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Quart 1948 Leptonycteris (?) 2 June 7 Punta Gasperino, 10+ ft., 23°16'N, 110°9'W, Baja California was said to be near the ocean. A fisherman near here said today that he had seen bats feeding on and around blossoms of Cardons, Pitayos, and Agave, and also eating one of the plants that leafs out after a rain. Perhaps it will tie on with this bat. June 24th cave south of Mulege, 50+ ft., Baja California One caught this morning in second widening of cave. It was caught with one Mormoops megalophylla. About 50 Macrotus californicus were present in the cave. Much fewer numbers of all three of these species in the cave this time. June 30 Mina La Zonta, 100+ ft., 2 mi W. Santa Rosalia, Baja California Six males and two females caught in this mine this afternoon (See Journal pg. 146). One immature female and several immature males were in the group. Purple droppings (splotches) of possibly Cardons fruit were noticed on mine floor about 30 feet in from the entrance – about the place where the bats were first seen flying at our entrance. Those of this species that were ahead of us kept flying before us until we reached the end of the tunnel whereupon they hung on the ceiling and sides evidently waiting for us to make the next move. Several were netted here and four more at our exit at the entrance – one Macrotus californicus also caught at entrance.
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Quast 1948 Natalus mexicanus May 24 Las Cuevas, 23°34'N, 109°39'W, Baja California Approx. 40 specimens taken from a cave near town this morning. The Natalus were hanging in the first cave visited (for description see journal pg 86). Hanging nearby were several hundred Myotis velifer. The males of this species have a large muscle - like gland on top of the skull rostrum. It is so large that it changes the appearance of the skinned head considerably and cannot help but be noticed. The females have only a small ligament or fascia in the corresponding position. May 31 El Chono, 800±ft, 2mi W. Agua Caliente, Cape District, Baja Calif. About 20 of this species brought into camp yesterday afternoon by boys who had caught them in an irrigation sited tunnel. Dr. Benes put up several specimens. Color variation of pelage from cream-white to orange in different individuals evidently does not depend upon sex. Both ♂ and ♀ individuals were found in both extremes. June 7 Punta Gasparino, 10±ft, 23°16'N, 110°9'W, Baja California One netted by Murray at dusk at a ranch near her. Area had open water available. The bat was said to have been flying very close to the ground and in a very erratic fashion. Netted at dusk.
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Quest 1948 Myotis californicus 7 May 5 Bahia Concepcion 13 mi S.E. Mulege Baja California One shot by Dr. Benson last evening at dusk. Bat was feeding over cliffs bordering beach where we were camped. May 13 Santa Ana, Arroyo de Los Viejos, 25 ft, 24°03'N, 110°58'W Baja Cal. Two females and five males obtained by group around fresh-water pond in arroyo below house at Santa Ana. Bats were flying about pond, coral, palm and "Mangle Dulce" trees at late dusk. I shot one male (#172). His epididimis glands were located in the scrotatum and swollen. The females done by Twiss were said to contain no embryos. Minimum last night was 51° F. May 23 Buena Vista, 25 ft, 23°35'N, 109°41'W, Baja California One male and one female caught by land net in house nearly our camp last night (#236, 237). The female had one embryo of 10 mm. This species was seen last night and the night previously flying very close to the house and in and out its low porch and open doors at dusk. The two specimens cought last night were netted in the large central room of the house. Several people have lived in the houses for years although all were outside while the bats were flying. I would estimate that there were about 10 individual in that particular group of bats. May 27 El Carripalito, 1400 ft 5 mi N. San Diego Baja California One female (#264) shot last evening at sun-
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Quest 1948 Myotis californicus 2 May 27 El Carrizalito 1400 ft. 5 mi N Santiago, Baja California set when it was still very light. Specimen was flying along brush fence in region were granite bouldered hillside meets flat below. It contained one embryo of 13 mm. May 28 Same Location One caught by caretaker here last night as it flew over pond by this house. One also netted by Murray. May 29 Same Location One netted yesterday at 8:00 P.M. as it was flying over pond at caretaker's house (# 270) June 22 Santa Rosalillo, 25+ ft S.E. end Bahia de Concepcion, Baja California One male #434 obtained at the water hole this evening at about 11:00 P.M. This specimen was very interesting because of the fact that it was either very sick or wounded by our shooting at a spot near there at dusk. When first seen in the brilliant moonlight it was flying like a butterfly very slowly and irregularly into the small breeze that was blowing and toward the water hole. As it flew past me I made a strike at it with the net but missed, the bat flying off to one side and then into the water hole. I turned on the flashlight and watched the specimen hover very slowly over the water and then fall in after an at- tempt to drink. The specimen swam to one of the dirt walls, climbed a few inches up the side and then fell back into the water.
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Quart 1948 Mystis californicus 3 June 22 Santa Rosalillo, 25+ ft, 5F and Bahia de Concepcion, Baja Calif. I finally obtained the specimen by letting it crawl onto the end of my net which I dipped into the water. On examining the specimen I could find no gunshot wounds, only a slight reddish area on the right forearm. June 25 Los Martires, 300+ ft, 23 mi by road NW San Ignacio, Baja Calif. One male, #434, shot this evening at dusk as it was flying over low brush 100 yards north of the coral. A very strong wind was blowing and the bat appeared to have difficulty in navigating. It has been noticed before and was noticed to - night that this species appears to feed over a wide area and is usually glimpsed only as it is flying by. It seems not to feed in the small areas noticed in Epterus fuscus and Pipistillus hesperus, several small bats possibly of this species were glimpsed drinking at the long watering trough at this place but they were not obtained due to the wind. The boy at the ranch said that many bats visited the tanks on quiet nights. This bat was feeding singly, no other bats being near at the time it was shot. June 26 Arroyo San Louis, 800+ ft, 9 mi W Calmelli, Baja California One J #41, obtained in the mine at this place this afternoon (see Journal pg. 138 for description of mine). Two others were seen in the upper stope section
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Quest 1948 Myotis californicus June 26 Arroyo San Louis, 300+ ft, 7 mi W Calmelli, Baja California of the mine and one in the horizontal tunnel. One small bat, possibly this species, seen flying across the arroyo just before dark. June 27 Same location Visited the horizontal tunnel this morning but saw none of this species. July 12 Calevina, 1850+ ft, Baja California One female #453 obtained by netting over pond south of the ranch after dark. Specimen appears to be feeding singly. One other obtained by Dr. Benson at the same location in the same manner.
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Quest 1948 Myotis velifer May 17 Trunfo 1700 ft. Baja California see species account of Myotis volans for May 17, same location. May 20 Same Location. One ♀, No limbs, (# 217) shot last night at 5:15. Bat was flying up roadway bordered by Mesquite and bushes 50 yards south of camp. May 24 Las Cuevas, 23°34'N, 109°39'W, Baja California From five-hundred to one thousand seen in first cave visited this morning. Were near Noctules mexicanus (see Journal). May 25 El Carregalito, 1400 ft. 5 mi N Santiago, Baja Calif. Several netted by Tevis as they flew over water tank at dusk last night. June 7 Santa Anita, 250-ft, Cap District, Baja California A group of 100-200 seen yesterday afternoon in ceiling corner of unused house in town. Dr. Benson could several of which I put up one male # 291. June 5 San Jose del Cabo, Baja California Three caught by boys and brought to Dr. Benson last night. Were seen feeding after 7 P.M. in streets, around the trees, and close to the buildings in town.
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Quest 1948 Myotis volans April 30 30mi S.E. Mesquital 600 ft Baja California (Written in San Ignacio). Two males caught in roof thatched with palm-fronds from delapidated building (adobe) about 200 yds from mine. Bats were procured about 9:00 AM. April 29 by tapping the thatching with sticks and the subsequent hand setting of the individuals as they flew out singly. May 17 Trujillo, 1700 ft, Baja California Myotis delifer Two caught yesterday in an abandoned building in town. They were roosting in the same spot as Tadarida - crowded between 2x12 supports for the roof of a wrecked 2 story building. Specimens were cataloged by Dr. Benem. May 26 El Carrizalito, 1400 ft, 5mi N. Santiago, Baja Calif. One netted by Murray as it flew over water tank 100 yards west of camp last night.
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Quast 1948 Myotis yumanensis I April 30 Mission San Ignacio 500 ft Baja California. Two males caught in stone-walled and roofed room in building attached to west end of building. They were caught at 10:30 and 11:00 P.M. yesterday, and were found hanging singly from the roof. Specimens were prepared by Dr. Benson. 3:00 P.M. 15 caught this afternoon with land nets in high stone-roofed room east of mission proper. The ceiling is of brick and crumbling cement and the bats were in groups hidden in the crevices between the bricks. Shot fired from 22 pistol disturbed a few of them, but the remainder had to be poked out with a long stick. The specimens were cataloged by Dr. Benson. 9:00 P.M. Have just inspected room in which two males were captured last night. None were seen although it was occupied by three Macrotus californicus. Possibly, they Myotis were so disturbed by our raiding a nearby roost (above paragraph) about 100 yards distant that they did not go to their accustomed place after feeding. May 2 Mulge 25+ ft Baja California, About 40 caught yesterday in crevice between 2 x 12's supporting porch in back of government building here. Of 20 sel-
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Quart 1948 Myotis yumanensis 2 May 3 Nulege 25+ ft Baja California scat at random for stuffing, 19 were females with one male. Of the seven bats I put up, all female. Two had embryos (no. 117 + 121 of the series 116-122 incl.) The beams from which the bats were procured are part of a large cement-floored porch about 40 yards long and 10 yards wide. The beams are about 12 ft off the ground. Bats were located yesterday afternoon by their squeaking. Two females were caught by Dr. Bonan, Murray & Tevis at the jail at dusk last evening. One was caught and two others seen yesterday in same room in which the Tadarida mexicana were caught. The Myotis were seen to enter a small crack in the ceiling in the opposite end of the room. 10:00 P.M. Two flew into the room we are using at 7:30 P.M. One hid in the ceiling im- mediately, but the other was kept flying by chasing it with a broom until 8:10 PM when the other returned with its hand notes. At the end of the forty minutes, the bat appeared to be tiring, its entire efforts being made in finding a place protected enough to rest.
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Quest 1948 Myotis yumanensis 3 May 11 Pozo Grande 25°46'N 112°02'W Baja California. About 30 seen last evening at water hole here. Bats were in a close group flying about 1 ft or less above the water in the vicinity of the pond bounded by willows and containing rocks protruding above the surface. The bats flew very close together for about 15 minutes (7:15-7:30 P.M.) occasionally touching each other with their wing tips. Specimens were obtained by Murray, Tevis, and Dr. Benson.
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Quast 1948 Pipistrellus hesperus 1 April 10 Punta San Felipe, 50 ± ft, Baja California. Three seen flying westward by camp at 7:00 P.M. this evening. One shot last evening and another this evening (#35+36). Bats possibly flying from sea caves and rock crevices of Point. Seen feeding close to ground along beach in pairs and groups of four and five at dusk. April 11 One seen flying over camp 6:00 A.M. 9:30 P.M.: Pipistrellus started flying toward San Felipe from the hill NE (previously stated as East) of camp at 7:00 P.M. The Pipistrellus came in loose groups, for four or five would pass over in one interval of time with none in the following interval. Later the Pipistrellus were seen feeding close to the terrain. Two instances were noted in which a probable Pipistrellus circled a person completely at about the level of his waist at a distance of about two feet. April 14 El Mayor, 30 ft, Rio Hardy, Baja California One shot flying singly over roadway at 10:30 A.M. by Dr Benson. Bat did not appear to be feeding and was flying slowly in one direction. April 17 Cerro Prieto, 30 ft, 20 mi SSE Mexicali, Baja Calif. I shot one flying at dusk along border of mesquite trees when they met an open field.
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Quast 1948 Pipistrellus hesperna 2 April 17 Cerro Prieto 30 ft 20 mi SSE Mexicali Baja Calif. Dr. Benson also shot me at the same time 100 yds. distant. The Pipistrelles were not noted until it was quite dark and were feeding when seen. My specimen was not put up because of drying out overnight and blasted condition. April 19 One shot at dusk (7:45 P.M.) yesterday as it was flying over open field. (♀ #28) May 3 Mulege 25± ft Baja California 3 ♂ + 2 ♀ shot at dusk by Murray, Tevis, and Dr Benson in a small rocky canyon above the creek. Dr. Benson said that they were then in very large numbers. Specimens were put up by Dr. Benson under this date. May 8 Rancho Cadejo S.W. end Baha Concepcion Baja California One male shot last evening at dusk by Murray. About five others seen, feeding singly. May 10 San Jose de Comondú 700 ft Baja California Two shot by myself last evening between 7:15 and 7:45 P.M. They were feeding among the palm trees of the arroyo floor accompanied by Eptesicus fuscus which started flying about 7:30 P.M. So far I have noticed that the Pipistrellus hesperna is the first bat to be seen flying in the afternoon, appearing here at sunset. They appear to be very common here. Minimum temp. last night was 56° F. Only one specimen saved (#163).
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Quest 1948 Pipistrellus hesperus 3 May 17 Trunfo, 1700 ft. Baja California One male and one female (2 Emb., 8mm) shot at sunset yesterday evening. The species was at its greatest concentration over the wash at sunset, decreasing in numbers seen until half an hour later when none were seen. The bats were feeding around Mesquite trees and up and down the wash below our camp. The Pipistrellus started feeding about 15 minutes before larger species were seen in the air. Tonight the Pipistrellus appeared at 6:30, feeding around the mesquite trees. The larger bats appeared at 7:00 P.M. It was quite cloudy in the west this evening possibly causing an early appearance of the bats. Two females were shot (#197,198) containing each 2 embryos of 7 and 8mm respectively. May 18 Same Location. The species did not appear until 7 P.M. this evening possibly because of the complete absence of clouds or overcast at sunset. Dr. Benson shot one. The Pipistrellus appeared at the same time tonight as Dasycyptus ega and E. pleuriscis fuscus, both of which were obtained. May 25 El Carrigalito, 1400 ft. 3 mi N San Diego, Baja California One caught last night as it flew into wire strung across water tanks at dark. Specimen (# 253) had two embryos of 10mm each.
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Quest 1946 Pipistrellus hesperus 4 May 23 E. Carragita, 1400ft, 5 mi N. Santiago, Baja California. Specimen flew into wires stretched one inch above water surface at same moment as two Eptesicus fuscus. May 27 Same location. One female (#265) with 2 embs of 9mm cought at dark last night as it flew over water tanks 100 yards west of camp. The Pipistrellus seem attracted to the swinging net, swinging around and following it in its course very often. The Pipistrellus are very common here, they being seen in numbers around the large gran- ite boulders of the hillside, and along the roadway and garden near camp. Tevis and Murray have netted many over the water tanks on the hillside at dusk and darks. May 28 Same location. 8? netted here last night over the upper water tanks between 7:30 and 9:30. No other bats were caught by myself, but Tevis caught one Corynorhinus and a Myotis californicus on the opposite side of the tank in the same interval. Each time a Pipistrellus was cought, several others were noted in the vicinity, they seeming to come in associated groups. May 29 Same location. One shot 6:45 P.M. yesterday as it was flying over cornfield next to camp. (#269)
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Quast 1948 Pipistrellus hesperus 5 May 30 El Choro, 800+ ft, N.W. Agua Caliente, Cape District, Baja Calif. Several hundred seen at dusk last night, most of which were flying out of the canyon west of us at great heights. Later a few descended to feed around us, but by far the greater majority were flying to feed in the direction of Agua Caliente. June 6 1 Mi N. Cabo San Lucas, 20+ ft, Baja California One shot last evening at dusk by Dr. Benson. Time of shooting was about 7:15 P.M. Specimen was flying along evergreen hedge and large Mesquite tree near camp. Nearest hills other than the Point San Lucas are about 2 miles distant (east). We are about 1 mile from the rocks of the point. June 8 Punta Lasparino, 10+ ft, 23°16' N, 110°09' W, Baja California Several obtained by Murray and Dr. Benson at ranch near here, but in the mountains. Ranch contains open water in the form of a Tinaja. June 9 San Juan de la Cienega, 1600 ft W. de Rio Laguna, Baja Calif. One female with 2 emb (11mm) obtained at 7:15 this evening. # 339. Specimen was feeding over trees and bushes on side of hill west of camp. Pelage noticeably lighter than specimens I have obtained before. June 12 La Laguna, 6200+ ft, de Rio de Laguna, Baja California Shot male (#353) near forest (100ft) in flat at 7:30 P.M. this evening. The Pipistrellus were feeding with Epsecius fuscus at the forest border and among and over oak and pine trees.
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Quast 1948 Pipistrellus hesperus 6 June 23 Mulege, 250 ft Baja California Several hundred seen this evening just after sunset. They were flying at a very high altitude from the mountains south of us towards the palms in the valley floor. For a while a large "cloud" of bats and Nighthawks circled far above our heads to dissolve completely in the next fifteen minutes. The large number of Pipistrellus disappeared from the sky to feed among the palms and brush of the canyon floor, their being seen feeding low thereafter. Other species of small bats may have been present but only this species was shot. In the later periods they fed about the same habitat as the Eptesicus fuscus being seen more frequently over the open field with low brush however. June 29 Santa Rosalia, 100 ft Baja California One shot by Dr. Benson and one netted by myself as they flew over low brush on flat in back of beach about ½ mile north of this town. Feeding in same habitat as a larger bat - probably Eptesicus fuscus. Time of obtaining the specimens was at dark (about 8:30 PM). June 30 San Lucero, 100 ft, 5 mi S. Santa Rosalia, Baja California This species appeared at this place (see Journal pg. 148) ten minutes after the first Nighthawk was seen (sunset). They were feeding over the brush by the pond and over a nearby cornfield. Eptesicus fuscus appeared ten minutes later than the Pipistrellus. It was noticed
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Quest 1948 Pipistrellus hesperus 7 June 30 San Luciano, 100+ feet, 5 mi S. Santa Rosalia, Baja California that this species ranged over a larger amount of terrain than the Eptesicus fuscus which confines their range to the limits of the cornfield. Dr. Benen netted one that was flying low over what looked like large Encelia bushes near the pond. Saw two of this species chasing each other in close curves and spirals for at least 10 seconds. They were seen over the rock fence bordering the cornfield. July 12 Catawiña, 1350+ ft. Baja California One male and three females obtained this evening before and after sundown. All were shot as they flew up and down the wash west of the ranch. Two of this species were seen flying together down the wash before sundown, their being illuminated by the light of the setting sun. They were definitely associated with each other, one continuously flying up to and darting around the other. After sun- down they became much more common and about fifteen were seen feeding about a small mosquito in the wash.
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Quast 1948 Eptesicus fuscus May 10 San Jose de Comondú, 700 ft. Baja California Two males (#161, 162) shot last evening just after dusk (7:30 P.M.) They were feeding around palm trees on the valley floor and appeared later than the Pipistrellus hesperus. Minimum temperature last night was 56° F. May 11 Perro Grande, 25+ ft 25°46' N 112°02' W. Baja California Two males shot flying over water-hole 200 yards west of town at late dusk. The bats were flying singly about 30 feet above the grain pond and surrounding sand, willow. They were easily recognized in flight by their higher level of flight and larger size than the Myotis yumanensis. I put up one specimen (#171), the other was found in the morning and put up by Dr. Benson. May 12 Triunfo, 1700 ft. Baja California Three caught by Dr. Benson, Tevis, Murray and myself, in an abandoned building in town yesterday afternoon. It is believed that the Eptesicus were hanging in a different place than the Tadarida mexicana and Myotis volans which were situated between doubled 2x12" supports to a box roof of a 2 story building. The Eptesicus were believed to have been in a crevice between a similar 2x12 sup- port and the wall, one story lower. Specimens were put up by Tevis.
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Quest 1948 Eptesicus fuscus 2 May 18 Trunfo, 1700 ft. Baja California mumble mumble Shot one ♀ (No Emb., #199) yesterday evening at 7:00 P.M. Specimen was flying alone over small canyon (wash) bordered by brush. Others were obtained by Murray and Tevis. May 19 Same Location. 1♂ + 2♀ shot last evening between 7 and 7:30. The species was feeding low (about 15 feet off the ground) among mesquite and along road leading past camp. One female contained no embryos. The other was so badly mutilated that the skull had to be discarded and embryos could not be looked for. (#209, 210, 211). Others of the same species obtained by Murray and Dr. Benson. May 20 Same location. Two females shot yesterday between 7 and 7:30 P.M. (#218, 219). Neither had embryos. Bats were flying about 15 feet off the ground and up a roadaway bordered by scattered Mesquite and other trees and bushes. One circled my gun barrel several times before it finally flew to Murray who shot it. May 24 Buena Vista, 25± ft. 23°38'N, 109°41'W, Baja California mumble mumble Two females, one containing 2 emb., 4mm, shot last night at dusk as they flew up the roadway west of camp. They were flying at tree level (Iron- wood, Mesquite, Lunbori, etc.) and at the height of about 8 feet. Both chattered loudly when hit by shot from the half-loads.
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Quest 1948 Eptesicus fuscus 3 May 25 El Carrisalito, 1400 ft. 5 mi N. Santiago Baja California. Three females (#254, 255, 256) caught by swinging fine wire over open water tanks last night. The bats presumably were flying low over the water to drink. All were caught thus well after the sun had set and at about the moment when full dark sets in. All three fell into the water after hitting the wire stretched tightly about ten inches above its surface and were swimming towards the sides. A Pipistrellus hesperus and two of the Eptesicus hit the wire simultaneously and were caught. Two of the specimens had two embryos apiece of 7 mm and 5 mm. June 10 San Juan de la Barradera, 1600 ft, Whas diera Laguna, Baja Cal. Shot two males about 7:30 PM yesterday (#340, 341). As usual the Eptesicus appeared later than the Pipistrellus hesperus which were seen 10-15 minutes earlier. The Eptesicus were flying across the flat area in which we were camped at a height of about 20 feet and in a straight line when obtained. At late dusk it was noticed that they fed much lower in the air, curling around the leafless trees and bushes at a 6-10 ft level. They make a "clicking" noise, similar to Pipistrellus hesperus but more slowly and loudly, when feeding. June 12 La Laguna, 6200+ ft, Sierra de la Laguna, Baja California One shot at dusk last night (#347) and also
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Quest 1948 Eptesicusfuscus 4 June12 La Laguna,6200 ft, Sierra de la Laguna, Baja California the night before last (#342), both in the same location and at about 7:30 P.M. This species feeds first in and over oak and medium forest at its margin of the flat, venturing to feed below tree level on the flat at late dusk and dark. Are quite common here. June17 Pozo Grande, 25°46'N, 112°02'W, Baja California Five shot (3 8,2 Q)(#371-375incl.) this evening between 7:30 and dark. The females contained no embryos. The first bat was seen at 7:30 and it was this species. All were feeding about and up and down the wash containing the large pool. They fed at a height of about 6 feet to 20 feet, fling into the wind and making the characteristic "chipping" sound as they moved slowly above the ground, shooting at them seems to bother them but little, the usual occurrence, if they were not hit, is for them to dive and catch the shotgun wad in mid-air. Several times it has happened that after shooting at and missing one of this species it has dove down and flown within a few inches of the smoking barrel, one even hitting it with its wing last night. If not killed when hit by the shot this species will lie quietly on the ground with wings folded close to its body until touched or picked up whereupon it assumes a menacing attitude with wings spread
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Quest 1948 Eptesicus fuscus 5 June 12 Pozo Grande, 25°46'N, 112°02'W, Baja California widely apart, lead turned back with jaws opened widely and a furious chattering accompanying them. If two of this species that are wounded and excited are brought close together, the result is usually a furious grappling and biting with loud chattering, the two bats having to be pulled apart. Some are so furious when hit that they will attempt to stand up to bite the approaching hand. This could not be called bluffing but sheer aggression. June 22 Santa Rosalillo, 25°-ft S.E. end Bahia de Concepcion, Baja Calif. Five or six of this species appeared over the reef after 7:40 P.M. When first seen two of them were flying toward us and then veered to our right to feed among the tall Cardones and over the coral and leeward side of a Palo San Juan and a Mesquite that are assoc- iated with the coral. The one Eptesicus I shot kept feeding over the coral and its route extended slightly past the two before mentioned trees set on opposite sides of the coral. A small bat had also taken up the same route of feeding and kept flying back and forth in its area. This species, Eptesicus fuscus, quite obviously has the tendency to establish favorite feeding areas and begins working them before dark. The specimen ob- tained #433 was a female with no embryo.
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Quest 1948 Eptesicusfuscus 6 June 22 Santa Rosalita, 25+ ft, SE end Bahia de Concepcion, Baja Murray netted one of this species that was feeding among the Cardones and Dr. Benson and Tevis shot several in the wash south of the coral. June 23 Mulege, 25+ ft, Baja California One female, #436, with two embryos of 19mm each, netted after dark tonight. Ten or twelve of this species had established feeding routes over a trail bordering large olive trees and a few shorter Mesquite trees. On the average they fed at a 10 to fifteen foot height and were flying lower than the tree tops. The "clicking" noise of their flight was obvious throughout the entire period that I attempted to net them. It seems as though this habit of feeding over a more or less clear and straight area bordering trees harboring the insects on which they feed is the best way to get ample food with the smallest ex- penditure of energy in flight. June 25 Los Martires, 300+ ft, 23 mi by road N.W. Landeros, Baja One male seen and shot this evening at dusk. The wind was blowing strongly and the bat was seen feeding close to the tops of small bushes in the desert sand among a few Cardones. I walked about 50 yards to the area in which I had seen it feeding and obtained it.
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Quest 1948 Eptesicus fuscus 7 June 25 Los Martires, 300+ ft, 23 mi by road N.W. San Ignacio Baja Calif. There are no mountains or hills in this vicinity, th nearest one being visible at a great distance to the east. A cement water tank and a long cement watering troughs both containing water, and a windmill exist at this place. One Myotis californicus was obtained shortly after this specimen was shot. Bats were very scarce this evening. June 30 San Lucano, 100+ ft, 5 mi S. Santa Rosalia, Baja California Shot three and Dr. Benson two of this species one evening over a cornfield at dusk (See Journal pg. 148). All four were females and one of my specimens (#444,445,446) had two embryos, one had one embryo and the other none. The feeding areas of this species were confined to the limits of the cornfield (approx. 150 x 250 ft) and we had to go into the area to shoot them, thus leaving the boundary but rarely. Pipistrellus deserius were also feeding over the cornfield but did not limit themselves to its limits. None were seen drinking at the pond of this species.
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Quast 1948 Lasurus borealis May 26 El Carrizalito, 1400 ft., 5 mi. N. Santiago, Baja California One netted by Murray as it flew over water Tank 100 yards west of camp last night at dark.
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Quart 1948 Dauphne ega 1 May 18 Trunfo, 1700 ft, Baja California One shot by Dr. Benson last night at 7:00 P.M. Specimen was flying near roadway and near mesquite trees. Specimen prepared and cataloged by Dr. Benson. One shot by Murray near Mesquite trees in canyon bottom at about 7:15 this evening May 25 El Carrigalito, 1400 ft, 5 mi N Santiago, Baja Calif One shot by Murray last night at dusk as it was flying over a cornfield nearby our camp. May 27 Same Location One shot by Dr. Benson as it was gliding down the hillside toward the flat below at dusk yesterday. May 29 Same Location One netted by Dr. Benson at 8:30 last night as it was flying over pond near caretaker's house (see map pg. 91 of journal). May 30 El Choro, 800+ ft, 3 mi W Agua Caliente, Cape District, Baja Calif Shot two yesterday at dusk over irrigation dam at this place (#272, 273). Both were females and had two embryos apiece. These were flying much lower than the Tadarida femorosacca obtained at the same time. It is believed that one of this species hit wires strung over pond just above dam at 9:30 P.M. I turned the light on it and it swam to the opposite side and was lost in the reeds. They appear to be good swimmers.
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Quast 1948 Dasypus elegans 2 May 31 El Choro, 800+ ft 2 mi W. Aguacaliente, Cape District, Baja Cal. Four females (#279-282 incl) shot last night at dusk and dark (7-7:45 PM). They had two embryos apiece of 8mm, the other was badly mutilated by gunshot and embryos could not be determined. Specimens obtained were flying about 20 feet around perimeter of pool above dam and also trees growing in walls of canyon above dam. Other specimens obtained by Tevés, Murray, and Dr. Benson. June 1 Santa Anita, 250+ ft, Cape District, Baja California Three males (#288, 289, 290) shot flying across field in arroyo bottom last night at dusk. First one seen at 6:45. Came out before L. Pipistrellus lemperi here. Palma present in great numbers here - a possible hiding place during the day. June 2 6 mi N. San Jose del Cabo, 250+ ft, Baja California One male and two females shot yesterday at dusk (#292, 293, 294). This species appeared at 6:45 P.M., approximately 15 minutes before the small bats (Pipistrellus size) appeared. Both females had two embryos apiece of 4 and 3 mm - noticeably smaller than those of El Choro. Murray watched one alight in a palm tree and shot it after chasing it out again. About ten chased out of palm tree near camp this morning by Dr. Benson. About four were shot by the group as they flew from palm trees
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Quack 1948 Dasypus ega 3 June 2 6 mi N San Jose del Cabo, 250+ ft, Baja California and turned out to be this species again. 9 pm reflecting on the places we have obtained this species, each has had palm trees in vicinity. June 5 San Jose del Cabo, Baja California Many seen flying in town and around palms at outskirts of town last night. These bats are carly risers and begin to fly at sunset, usually 15 minutes before other species are seen. Seen first over palms north of town, but later flying up and down the streets about 25 feet off the ground. This species feeds much higher than the smaller ones, flying above roof level while the smaller species dart to and fro in the streets. June 12 La Laguna, 6200+ ft, Sierra de la Laguna, Baja California One shot by Tevis last night at dusk. Were seen this evening flying in the western half of its flat between 7:15 and 7:30 but none were obtained by myself although Tevis shot one. It was noticed that this species prefers to feed over open ground, flying slowly and performing intricate maneuvers in its feeding. It does not fly low over the ground but maintains a height of from 20 to 60 feet except when pursuing an insect downward. Its flight is in large cycling arcs and here much different than the straight and fast flying Talanda mexicana.
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Quast 1948 Dasypterus oga 4 June 23 Mulege, 25+ ft, Baja California several shot by Dr. Benson and Tevis this even- ing as they circled around palm trees in valley after sunset.
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Quest 1948 Corynorhinus May 26 El Carrizalito, 1400 ft. 5 mi N. Santiago, Baja Calif. Three netted by Tevis last night at late dusk as they flew over an open water tank on the side hill west of camp. He said that all three were caught in as many minutes, none being caught beforehand or after that last night. May 27 Same Location One netted by Dr. Benson last night at dark (about 8:15 pm) over water tank 100 yards west of camp. Specimen was accompanied by several others, but no others were caught. May 28 Same Location One netted by Tevis last night at 8:40. Two were seen at once over the upper water tank but the two of us caught only the one. One was also netted by Muray about a half hour earlier, down at the tank below. June 26 Arroyo San Luis, 800+ ft, 9 mi W. Calmell, Baja California They caught in horizontal tunnel of mine here (see Journal pg 138 for description) by the group. The specimen I caught #440 was a female containing no embryos. It was procured about half way down the tunnel and was hanging face downward (against the rock) from the jagged rocks of the ceiling [about 5 1/2 feet high]. Its ears were tightly curled against the side of its head and it was in a torpid condition when caught despite the fact that two of the group had passed beneath it with flashlights and equipment. Another was peeled off the ceiling by Dr. Benson as
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Quest 1948 Couporhinus 2 June 26 Arroyo San Louis, 800+ ft, 7 mi W. Calmelli; Baja California. The group was leaving the tunnel. This bat was about 20 feet closer to th entrance than the one I obtained. It too was in a torpid condition with ears rolled against the sides of its head.
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Quast 1948 Antrozous minimus April 26 Mision la fortuna, 2350 ft, 2 mi N Laguna Seca de palmitos, Baja Calif: several females and one male caught by this group in the mine last night and this morning. Of these I put up one male and one female (#95,96). Bats were well within the caverns in places completely protected from light. Two of the females had one young apiece, clinging to them. Bats were caught at 10:30 last night and at 6:30 this morning. Hanging nearby were Choeronycteris mexicana. April 30 Mission San Ignacio, 500 ft, Baja California 10:30 P.M. One male captured just now by Tewis in stone room with arched stone ceiling. Same room in which Macrotus californicus are seen hanging every night. It is the only bat of this species seen here so far. Put up by Murray. May 25 El Carrigalito, 1400 ft, 5 mi N Santiago, Baja California 4 caught in unfinished two story building last night at about 9 PM (#258-261 incl). They were found hanging in the corner of the ceiling of a 2 story stair well. This building is a very popular place for Antrozous, six or eight being seen in the second story ceilings every night. They are usually clustered together in a corner, and the more popular spots are stained brown from the dirt on their fur. Their droppings
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Quart 1948 Antrozous mexicanus 2 May 25 El Carrigalito, 1400 ft. 5 mi. N. Santiago, Baja California. as thick on the floor below these spots. So far the Antrozous have been quite easy to catch while flying, seeming to forget their escape ways when chased with the hand net. They form quite a contrast with the Macrotes californicus which so far haven't been seen only in one small room on the ground floor and which fly immedi- ately to and through the exit, as if they had inspected the escape passages well before alighting. May 27 Same Location. One male caught last night of in second story stair-well of the building in which we are camped. Testis were enlarged, same for all specimens taken here, and vas deferens enlarged and in Uropataquin, Species no. 267. May 28 Same Location. Several more caught by Dr. Benson and Murray in house yesterday. May 29 Same Location. One netted last night about 9:30 P.M. as it was chased out of its perch in the ceiling of the second-story stair well. One of this species netted by Tavis as it flew over upper tanks (see map pg. 91 of Journal) at 8:30 P.M. yesterday. June 22 Santa Rosalillito, 25 ft. S.E. end Bahia de Concepcion, Baja Calif. Three lactating females netted over water hole between 9 and 11:30 P.M. tonight. See Journal pg. 132 for description of locality. It was observed
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Quast 1948 Antrogonus minor 3 June 22 Santa Rosalillito, 25+ ft S.E. and Bahia de Concepcion, Baja Calif. That several of this species would appear over the waterhole at once and also that this species would circle within the pit in a fixed manner before drinking. It was easy noting them as soon as they had circled twice and indicated the manner in which they would circle again. In contrast, the smaller bats (Myotis californicus?) would fly down into the pit immediately and fly back and forth several inches above the surface making an audible noise whenever it lit the water to drink.
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Quest 1948 Tadarida femorosacca May 30 El Chorro, 800+ ft., 2 mi. W. Agua Caliente, Cape District, Baja Calif. Seen from dusk to dark last night. Were flying very high early in the evening, but descended to about 50 feet above the ground just before dark. Were feeding in company with Pipistrellus hesperus and Eptesicus ega. Dr. Benson shot 4 Tadarida femorosacca and Tevis on last night. The canyon proper above the dam was better for shooting this species than the broader, flatter portions near and below camp, the bats flying much lower and circling more in the narrow canyon. T. femorosacca is distinctive in its large size, narrow wings, and rapid speed of flight. May 31 Same Location One male and three females (#283-286 incl.) obtained last night between 7 and 7:45. Specimens were feeding about 40 feet high above the pond above the dam line. June 1 Santa Anita, 250+ ft., Cape District, Baja California. About five seen flying over field in arroyo bottom yesterday at dusk. This species was flying very high (well above tree level). Dr. Benson shot one. Field bordered by Mangos, Palms + Mesquites. June 4 6 mi. N. San Jose del Cabo, 250+ ft., Baja California One secured from rock crevice by Dr. Benson this morning. Specimen was found in crevices formed by exfoliating layers of a large spherical granite boulder in rock outcrop 200 yd. south of camp. Probably one of the two of this
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Quast 1948 Tadarida femoraceous 2 June 4 6 mi N. San Jose del Cabo, 250' ft, Baja California species I saw flying up the wash yesterday at dusk. Specimen was found next to a medium sized colony of Myotis velifer. The accumulated dropping from the two species had forced them into one small section of the crevice. Crevice was about 50 yds east of cave containing M. californicus. June 6 1 mi N. Cabo San Lucas, 20' ft, Baja California shot two males and one female last night at dusk. Specimens were flying over cleared field near camp and were flying quite high. Many long and spectacular dives were noted, the species coming within 10 feet of the ground, and then resuming flight direction and slowly climbing up to the original altitude. This species does not circle in flight as many others but seems to prefer to fly in a straight line high above the ground, and then to dive upon its prey. The original direction of flight is almost always resumed. This species flies fast and is difficult to shoot when flying with the wind. Specimens no 313, 314, 315. July 12 27 mi N.W. Punta Prieta, 2000' ft, Baja California One male #451 shot last night as it flew over camp at late dusk. This specimen was first noted by the high, almost inaudible, note it was emitting as it flew singly, high in the air, over camp.
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Quest 1948 Tadarida Mexicana 1 April 10 Punta San Felipe, 50 ft, Baja California Two caught by Dr. Benson that had flown into our skirting room separately at 10:30 and 11:00 P.M., while we were working on species. April 11 Several seen flying over beach at dusk. One shot by Murray. The Tadarida seem to fly singly and generally higher from the ground than the Pipistrellus hesperus, and are easily recognized as different from the Pipistrellus by their larger size and slower wing-beat. April 16 Cerro de Centinela 300 ft. 13 mi. WSW Mexicali, Baja California. One seen flying of over alluvial material of desert after sunrise by Dr. Benson. April 19 Cerro Pinto 30 ft. 20 mi. SSE Mexicali, Baja Calific. One female shot as it was flying at about 50 ft over open field, shot where field borders mesquite between 7:30 and 8:00 P.M. last night (# 78). April 30 Mission San Ignacio 500 ft Baja California. 46 caught, 19 & 27 F., in the old mission. The bats were found above the doorways in crevices formed by the wood moulding and in the attics of buildings adjoining the mission. The attics were inaccessible, but the bats were procured by poking through holes in the stone walls with consequent pouring out of the bats through the entrance to their roost. Hand nets were held over the holes.
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Quast 1948 Tadarida mexicana 2 April 30 Mission San Ignacio 500 ft Baja California and the bats poured into them like a waterfall. No other species of bats were encountered with the Tadarida. I put up ten specimens (# 103 through 109). The specimens were obtained about 6:00 P.M. No salivary glands were found in the females. Other specimens put up by Dr. Benson, Tevis, + Murray. 9:00 P.M. One just captured in unused room with 4 openings to outside. Specimen was released. Was in room next to and continuous with a smaller room containing three Macrotus californicus. The Tadarida began flying at sundown (7:00 P.M.) and were flying singly and appeared to be feeding. Their chattering can be heard starting early in the afternoon from their hiding places within the walls of the old mission. May 2 Mulalga 25 ft Baja California Two ♂ and 20 ♀ caught in crevice between a 2 x 12 and plastered wall at 12 noon today. All means of getting the Tadarida out of the crevice were used from poking at them with a hooked wire to attempting to smoke them out with an oil smudge all without success. Finally results were obtained by pounding on the 2 x 12 with
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Quest 1948 Tadarida mexicana 3 May 2 Mulege 25 +/- ft Baja California a hammer, the four of us netting 22 with the hand net. I put up 6 specimens (# 110-115 inc.) of which 5 had embryos ranging from 3 to 6 mm. It is interesting to note that the females I put up from San Ignacio contained no embryos. May 17 Trunfo, 1700 ft. Baja California Approximately 100 specimens obtained yesterday from 2x12 supports to second-story ceiling of abandoned building in town. Five or six times as many Tadarida were roosting there. They roosted in the long cracks formed by doubled 2"x12" supports for the ceiling and were routed out and captured by stirring in the crack with a thin stick while holding the net under- neath. The bats dropped by the dozen into the hand net held below. Roosting with the Tadarida, in the same crevice, were a few Myotis velifer. The bats were hung in a large burlap sack in a Mesquite tree in camp last night preparatory to putting up as specimens this morning. We awakened to find only 10 rem- aining in the sack, the remainder having escaped through holes chewed in the sack last night. The remaining specimens were catalogued by Dr. Benson.
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Quast 1948 Tadarida mexicana 4 May 17 Trunfo, 1200 ft. Baja California Several were seen flying over camp at dusk last evening (?). May 24 Buena Vista, 25+ ft., 23°38'N, 109°41'W, Baja California. One female shot last night as it flew down the road. Specimen (#240) had one embryo, 8 mm long. This bat was shot at at late dusk as it flew down the roadway which was bordered by Iron- wood, Palo Verde, Cholla, Lumbai, Frutis, and other shrubs. Specimen was flying at about 6 feet off the ground and very fast. May 31 El Chono, 800+ ft., 2 mi W. Agua Caliente, Cape District, Baja Calif. One shot last night flying over pond at dawn at dusk. #287. Was feeding about 15 feet above the water level in company with Pipistrellus hesperus, Tadarida bemrosacca and Dasypetus ega. June 2 6 mi N. San Jose del Cabo, 250+ ft., Baja California Several shot last evening at dusk by Dr. Benam and Murray. June 12 La Laguna, 6200+ ft., Sierra de la Laguna, Baja California One shot last night at dusk by Dr. Beams. Shot one female this evening at about 7:30 as it was flying over center of flat north of camp. This species and Dasypetus ega seem to prefer the same habitat to feed, namely unobstructed flight terrain. This species feeding by flying more or less in a straight line th. Dasypetus in tight arcs and difficult maneuvers.
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Quast 1948 Tadarida mexicana 5 June 13 Tadarida lentoo, 50-ft, Baja California Shot two females (# 357, 358) this evening at dusk. This species was feeding over sugar-cane field and stream about 200 yards west of the buildings of the main part of town. These were flying at about a thirty foot level and were mistaken for the larger Tadarida femorata by the group. Also flying were Dasypterus ega and a small bat. Early in the twilight time both the Tadarida and the Dasypterus were seen over the cane fields, but as darkness approached we noticed to leave off foraging over the field and concentrate in a small area over a small stream for erugating between palm trees and others. These two species of bats evidently have a set pattern for feeding each night. One of the Tadarida shot by myself was very black, evidently from roosting in a chimney.
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Quadr 1948 Lepus californicus April 11 Punta San Felipe, 50± ft, Baja California One seen on sand near gullies S. W. of camp. The rabbit quickly ran to a gully and disappeared from sight. The same rabbit, presumably, was jumped farther down the gully. There are numerous rabbit signs on the desert among the Ocotillo and creosote. April 18 Cerro Prieto 30 ft 20 mi S.S.E. Mexicali, Baja California Two seen this morning at 6:00 AM. Were jumped from mesquite border of lava projection into mud flat April 20 Alaska 4400 ft Baja California One seen approx. 2 P.M. in sage brush and pinon pine association. April 28 30 mi S.E. Mesquital 600 ft Baja California One female shot at 7:00 A.M. this morning as it crouched motionless, ears against its back, beneath a greasewood bush. (#100) No embryos were found. Many others have been seen between here and Mesquital. April 29 Mission La Ignacia 500 ft Baja California One seen by Dr. Benson about 30 miles north of here. May 5 Bahia Concepcion 13 mi S.E. Mulege, Baja California One shot by Dr. Benem on road between her and Mulege.
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Quast 1948 Lepus californicus 2 June 2 6mi N San Jose del Cabo, 250+ ft. Baja California Shot one female this morning at border of prickly pear patch 100 yds south of camp. Female was lactating, but contained no embryos, enlarged spots in the uterine tubes containing nothing but globules of jelly 10mm in length. June 8 Punta Gasparino, 10+ ft, 23° 16' N, 110° 09' W, Baja California Common here. One shot by Dr. Benson.
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Quest 1948 Sylvilagus auduboni April 17 Cerro Prieto 30 ft 20 mi S.S.E. Mexicali Baja Calif. One seen in mesquite thicket at base of Cerro Prieto at 9:30 A.M. April 18 Two seen this morning in dense mesquite thicket 100 yds from lava fields at 6:00 A.M.
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Quest 1948 Sylvilagus bachmani April 25 12 1/2 o'clock by road south of El Markol 2200 ft. Baja Cal. Four seen last evening while setting out traps, all probably being adults. Two were seen this morning about 7 A.M., well after sunrise. The female and its offspring were feeding and sitting near and in the shade of a large granite boulder within 10 feet of sage brush. The rabbits were watched for about five minutes from a distance of 30 feet and did not detect me although I was in full view and fully lighted by the morning sun. The adult would sit and then wander in the shade of the boulder, digging in the sand beneath the sage brush while the young rabbit would frolic in and out of the bushes and play in the sunlight. The young rabbit would dash up to the adult and then turn and dart into the brush, re- turning in an instant to the sunlight where it would stop motionless. It would then either sniff at the sand or repeat its play. The adult meanwhile continued digging and watching motionless. I left and returned in about fifteen minutes and shot the young and I believe the same adult. Neither were kept as specimens, the young being too small an
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Quest 1948 Sylvilagus bachmani 2 April 25 12 1/2 mi by road south of El Marnot 2200 ft Baja Calif. the adult too mutilated by gunshot. We had them both for breakfast. Dr. Benson shot a immature of the same size and apparent age and put it up as a specimen. All the rabbits seen were within an area of 100 yds. dead or both last night and this morning. April 28 30 mi S.F. Mesquite 600 ft. Baja Californis Common here. One male shot after sun- rise this morning (6:30 A.M.) Specimen was crouched under a large bush watching me. (#99). Dr. Benson shot one last night.
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Quart 1948 Citellus atricapellis May 9 San Jose de Comondú 700 ft Baja California Three seen in boulders along road leading into town from the N.W. Dr. Benson shot one in boulders west of these this morning. May 1 Pozo Grande 25± ft 25°46'N 112°02'W Baja California About five seen in Arroyo Comondú yesterday in region where arroyo opens into Magdalena Plain. Dr. Benson shot one there. Vegetation was Opuntia and Pitaya with Mesquite. Squirrels were seen near boulders and stone fence along road.
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Quast 1948 Citellus beecheyi April 20 Alaska 4400ft Baja California One seen in canyon at bottom of Alaska grade yesterday, and one seen today under sage brush on road (old road) to Ensenada about 10 mi west of Alaska. Both times the squirrels were within an area supplied with running water, willows, etc. May 7 Rancho Cadeje S.W. end Bahia Concepcion Baja Calif. One seen in boulders along road 100 yards from shore of bay. Spot was about 5 miles north of here.
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Quest 1948 Citellus beecheri April 11 Punta San Felipe, 50+ ft, Baja California One shot and two secured in Schuyler traps by Lloyd Lewis yesterday afternoon about 5:00 P.M. Taken in sandy draw 200 yds west of camp; one in rocks above. April 29 Mission San Ignacio 500 ft, Baja California Common from Laguna Secachapala to here. Dr Benson shot two of them today about 20 miles south of E1 Area in a scattered creosote region with sand soil. May 2 Mulege 25+ ft, Baja California About five seen along the road between here and San Ignacio. May 8 San Jose de Comondú 700 ft, Baja California One shot by Dr. Benson about 15 miles north of here in very desolate and sparsely vegetated lava country. May 15 4 miles N of La Paz, Sea Level, Baja California May 16 One female with no embryos (#175) shot at 4:00 P.M. yesterday afternoon. Was shot near shallow gulley in rocky hillside 100 yards east of camp. Plants growing nearby were Opuntia cholla, Lomboi, Creosote, Mesquite and E la phrium. It was still very warm when the animal was seen, the temperature being 101°F at about 1:30 P.M. yesterday. The cactus and bushes are well separated in that region, the intervening spaces being made up of bare fragmented porous lava rock and a little soil.
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Quart 1948 Citellus leucurus 2 May 18 Trumbo, 1700 ft. Baja California Five or six caught by Tex this afternoon and yesterday afternoon in Schuyler traps. Traps were set along brush fence surrounding an abandoned cornfield immediately east of camp. Area is in an arroyo and occupies the bottom of it. Sandy soil is present and a few remains of corn stalks may still be seen. Surrounding the area is rocky and covered with small trees and bushes heavily grazed by goats + cattle. May 19 Same Location. Shot two females (#215+216) this afternoon at 1:30. Both were shot as they sat in a brush fence surrounding a small field 200 yards east of camp. Many others were seen on the rocky ground outside of the fence and under heavily grazed brush, but they ran before I could shoot. One of the females had four large embryos, the other none. This species is abundant in this area. May 27 El Carrizalito, 1400 ft., 5 mi N. Santiago, Baja California Six or eight seen along road leading east from camp yesterday at about 10:00 pm. May 30 El Chorro, 800 ft., 2 mi W Agua Caliente, Cape District, Baja Calif. Several seen this morning in small piled granite boulders in stream bottom by camp. June 2. 6 mi N San Jose del Cabo, 250 ft., Baja California June 3 Very plentiful here around Prickly Pear patch
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Quest 1948 Citellus leucurus 3 June 2 6 mi N San Jose del Cabo, 250 ft, Baja California 200 yds. south of camp. Most plentiful among the Prickley Pear but also extend up rocky hill among Pituaya dulce and Limboi. I have yet to hear any vocal utterance from these squirrels when they are approached. They are less timid when they are in the Prickley Pear, some watching me for quite a while at 20 feet and seemed reluctant to go down their holes (12 noon). Per- haps they are accustomed to being looked by the nearness of goats and cattle and have found the Prickley Pear protection ordinarily requiring no further steps. June 9 San Juan de la Serada, 1600 ft. W base Sierra Laguna, Baja Calif. One seen and obtained yesterday on boulders in rocky wash near camp (#338). Squirrel was shot about 1:30 P.M. and was a lactating female. This species seems quite scarce in this area.
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Quast 1948 Citellus tereticaudus April 11 Punta San Felipe, 50+ ft, Baja California Five seen in desert association within 2.5 miles of San Felipe. Three were in upper branches of bushes (crevato?). None were seen. April 17 Cerro Prieto 30ft 20 mi SSE Mexicali, Baja Calif Two seen in dust and sand of roadway this afternoon. Roadway was bordered by thick mesquite. Individuals were separate and about 100 yds apart. April 28 30 Mi SE Mexical, 600 ft, Baja California Common in thick bush and cactus along roadside between, Las and Mexicali
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Quast 1948 Eutamias merriami April 20 Alaska 4400 ft Baja California About six seen in one hour's walk among the large granite boulders 1/2 mi west of the town. They were very shy and it was impossible to get near enough to them to shoot except on one occasion in which the animal escaped into the rocks after being hit squarely by #10 shot at about 75 feet. All were seen among the pino pine and large granite boulders singly.
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Quest 1948 Perognathus arenarius 7 May 6 Bahia Concepcion 13 mi S.F. Mulege Baja California Six males and one female caught in live traps baited with bird seed last night. Traps were set in sandy area in back of shell beach and below lava rocks. Traps were set among large bushes. All males had enlarged testes and the female one embryo (see catalog #140 to 146 incl.). May 7 Same location. Two females and one male caught (#154,155,156) last night in live traps set among large bushes of "Mangle Dulce" mixed in with creosote, Oclla, Kalo Verde, Cardone, and Elephantaphrium. One female had two embryos of 6mm each, the other no embryos. The male had enlarged testes of 9mm. This species of Perognathus is the most insistent of the mice caught so far, each individual being extracted from the live traps only with great difficulty, and always accompanied by squealing, jumping and biting. June 7 Punta Gasparino, 10'ft, 23°16'N, 110°9'W Baja California 5♂ + 4♀ (#316-324 incl.) caught in sand dune area last night. Live traps (48) were set just south of camp among short dense shrubs growing on sea side of silty sand dunes. The females had no embryos. These mice seem larger and much more mild tempered than those caught at Bahia Concepcion.
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Quast 1948 2 Perognathus arenaeius June 8 Punta Lasparino, 10-ft, 23°16'N, 110°9'W, Baja California 7♂, 6♀ (#325-337incl) caught last night in 48 live traps set among short dense shrubs on crest of sand dunes nearest the beach. Traps were baited with Sudan-grass seed and ran from camp southwest. This is the only species of mouse caught in these dunes in two days of trapping. Most of the mice were caught around the areas of short, densely matted bushes, the population seeming to drop off in areas less densely vegetated. Saw a large rattlesnake in one of the brush clumps two nights ago at dusk. Number 337 was the only female containing embryos, having 4 of 4 mm each. June 19 San Jorge 5-ft, 25°44'N, 112°07'W, Baja California 7♂, 4♀ (377-387incl) caught in Museum Special traps set last night in "Mangle Dulce" clumps along sand cliffs bordering estero north of camp. The "Mangle Dulce" grows next to the Mangrove of the estero but usually separated from it by at least the debris of high water mark, and usually a small strip of sand below the cliffs. Most of the traps were set on the top of the cliff within 10 feet of the edge, but a few set at the bottom of the cliff in sand but near the Mangroves also caught this species. Near the "Mangle Dulce" brushes large areas of crawling cactus were found and a
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Quart 1948 Perognathus arenarius 3 June 19 San Jorge, 5+ ft, 25°44'N, 112°07'W. Baja California. few Ocotillo and an occasional Lumbi. The character of the sand is such that it packs firmly, being fine and of a reddish tint. The Museum special was baited with walnut. One Perognathus baileyi was also caught in this habitat. 48 live traps set among Ocotillo, Lumbi, and Pitiaya agria clumps on hill east of camp last night caught 9♂ + 8♀ of this species and also 2 Dipodomys merriami + one Perognathus baileyi (#388-405 incl). This hill is about 100 yards east of the estero shore and probably about 75 feet high being com- posed of reddish hard-pack sand containing a few shells (probably of human origin). Mouse sign is abundant in this habitat and small burrows exceedingly common. The moon was almost full last night. June 20 Same location 50 live traps set in same habitat but N.F. of camp caught 4♂ and 3♀. The females had no embryos, 1 Dipodomys merriami and one Perognathus baileyi also caught in same habitat. June 21 Same location Moved my live traps up to the north end of the estero last night. At that place a Mangrove thicket exists that extends about 100 yards north from the estero in boggy ground and is peculiar in its fact that it is made
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Quast 1948 Perognathus arenarius 4 June 21 San Jorge, 5+ ft, 25°44'N, 112°07'W, Baja California up of short, small, Mangrove plants. Surrounding the mangrove extension is flat ground with small plants growing in it but still very wet and full of holes of burrowing crabs. Next to this area is a dry one in which the live traps were set followed by dry sand and Ocotillo & other plants of the sandy region. Dry soil existed on one side of a row of "Mangl Dulci" with the wet bog on the other. Live traps set along the "Mangl Dulci" row on the dry side captured two of this species.
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Quast 1948 Perognathus baileyi 1 April 16 Cerro de Centinela 300 ft. 13 mi. WSW Mexicali Baja California Three males caught in live traps baited with ground corn on alluvial material below bare mountain slope. (#55, 56, 57). Traps set the night of 15th and gathered at sunrise on the 16th. April 18 Cerro Prieto 30 ft. 20 mi. SSE. Mexicali Baja California One male caught in rocks 15 ft from mesquite - sand association in draw (#74). May 6 Bahia Concepcion 13 mi. SE Mulege Baja California One female having no embryos and very fat caught in sandy area in back of shell beach and below lava rocks. Caught among large, separated bushes growing in coarse washed sands. Specimen #147 May 7 Same location. One male (#150) caught in live traps set among "Mangle Dulce" bushes, Cuestos, Palo Verde, Cholla, and Cardons in sandy area behind beach N.E. of camp last night. The specimen had enlarged testes of 15 mm. May 17 Trinida, 1700 ft. Baja California One male and one female (Emb. 20mm) caught in live traps set in abandoned cornfield which was surrounded by a brush fence. Both specimens were caught in sandy soil under brush with no rocks nearby. Specimens cataloged nos. 194/195 June 17 West Llano de Hired, 50+ ft. Baja California 10 and 11th caught last night in 47 live traps
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Quast 1948 Pteronathus baileyi 2 June 17 Went Llano de Hiley, 50 ft. Baja California set in dry lake bottom. The juvenile and immature specimens were released, leaving the series # 363-369 incl. Of the two female specimens, one had 2 embryos on the right side of 7mm, and the other none. This species was caught in the lake-bottom proper and also around small hillocks of sand intermediate between it and the sand dunes. Growing in the lake bottom in a fairly even cover and on the small sand hillocks as several kinds of very short bushes from 3 inches to a foot high. In hillocks beneath these bushes, Pteronathus baileyi burrows are common and their tracks are every- where in the more sandy places. When many of the specimens were released from the live traps they continued to stay around camp and became at ease around the place, eating and sitting under the table and around our feet with no apparent fear at our presence. Several specimens that were almost too cold to move this morning were covered with a piece of paper and showed a great attraction for it later when they would move to follow it when we changed its position. Minimum temperature last night was 53° F. Several very young specimens were caught, still having very fine hair with their pink skin showing through. June 19 San Jorge, 5 ft., 25°44'N, 112°02'SW, Baja California Two caught last night, one female in Museum.
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Quail 1948 Pernathus baileyi 3 June 19 San Jorge, 5+ ft 25044'N, 112007'W, Baja California Special traps set under Mangle Dule bushes close to the estero shore and one male (#398) in live traps set on hillside about 75 yards east of camp. Of the other species caught in the live traps tho (Pernathus arenarius + Dryadomyx merrami) this species was a decided minority. June 20 same location. One female #408 caught last night in live traps in same habitat as above.
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Quast 1948 Perognathus fallax April 25 12 1/2 mi by road south of El Marmol 2200 ft Baja California One female (#94) caught in fine gravel wash among large granite boulders. Specimen had no embryos. Temperature dropped to 43°F last night but specimen was healthy and active this morning. July 15 8 mi N Rosario, Baja California One male #459 caught in Museum special set near dense brush at base of hill west of camp last night.
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Quest 1948 Perognathus formosus April 7 Punta San Felipe, 50± ft, Baja California Nos. 12,13,14. Two females and one male caught last night on hill 200 yds. west of camp. The live traps were set in the boulder-strewn water courses and on the intervening rises between them. All traps were set well up on the steep hillside at least 50 yds from the base of the hill. The Perognathus formosus were caught mainly on the flat ground on top of the rises, the traps in the water-courses yielding Peromyscus erimitis. A few spots with soil beneath Enoclia bushes were honeycombed with burrows, possibly of the formosus species. 8:45 P.M. ten mouse traps (museum special) set before dark caught three Perognathus formosus females. Traps set along trail leading west of camp in area between talus slope and sea shore. Area sand and rocks with Enoclia and Cereote. Two specimens put up - nos. 18+19. April 10 Five caught, 3♀ + 2♂, on rocky hillside east of camp at least 100 yards from desert association of sand, ocotillo and creosote. Other mammals caught in accompanying live traps were Perognathus spinatus and Peromyscus erinitis. April 12 9 mi W. Punta San Felipe, 200± ft, Baja California One caught on decomposed granite hillside with a Perognathus spinatus + a Perognathus erinitis #45. (50 traps set)
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Quast 1948 Perognathus formosus 2 April 15 Cerno de Centinela, 300 ft, 13 mi WSW Mexicali, Baja California. Two caught in live traps baited with ground whole corn in small meandering wash in alluvial material below rock mountained. Specimens put up by Teves and Murray + cataloged in their books under this date.
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Quast 1948 Perognathus penicillatus April 18 Cerro Prieto 30 ft 20 mi SSE Mexicali, Baja California Two caught last night in rocks within 20 feet of desert sand. (#69,71,72,73,+75). Traps located near or under creosote and mesquite.
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Quast 1948 Perognathus spinatus 1 April 10 Punta San Felipe, 50+ ft, Baja California Four ♂, six ♀ in rocky mountainside east of camp. Traps set mainly on rises between gullies and near burrows beneath Encelia bushes. Animals caught at night in live traps set ap- proximately 30 ft apart and were accompanied by four Perognathus formosus and two Peromyscus crinitus. Traps set at least 100 yds from desert association. April 12 9 mi W. Punta San Felipe, 200+ ft, Baja California One caught on decomposed granite hillside with one Perognathus formosus and a Peromyscus crinitus. 50 live traps were set. #44. April 15 Cerrada Centinela 300 ft 13 mi WSW Mexicali; Baja California Four caught in live traps baited with ground whole corn in small meandering wash in alluvial material below rock mountainside. Specimens put up by Tevis and Murray and cataloged under this date. April 16 One ♂ + one ♀ caught in alluvial material in live traps baited with ground whole corn at night of the 15th (#54 + 59). April 18 Cerro Prieto 30 ft 20 mi SSE Mexicali, Baja California Four caught in rocks (lava) within 50 feet of mesquite-sand association.
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Quast 1948 Perognathus operatus 2 May 4 Mulege 25° ft Baja California 5 ♀ caught in lava rocks above creek by Dr. Benson and Tevis last night. Specimens put up by the two and caught in Museum Specials baited with walnut. May 5 Bahia Concepcion, 13 mi S.E. Mulege, Baja California Two males and two females caught in rocks above sandy area in back of beach last night. The males had enlarged testes, 7 and 14 mm, but no embryos were found in the females. Growing in the sand below the rocks are Mesquite, Cudnie, Cholla, and Pitaya. Caught in same habitat were Peromyscus eremicus (2♀). May 7 Same Location. Two males and one female (#151, 152, 153) caught among large "Mangle Dulce" bushes growing in sandy area behind shell beach N.E. of camp. Other plants growing in area were Creosote, Cholla, Cardone, Elephantaphrium and Palo Verde. One male had testes of 13 mm, the female had no embryos. May 8 Rancho Cadeji, S.W. end Bahia Concepcion, Baja California Two males (#157, 158) caught in live traps set on rocky hillside west of road. Only two animals were caught in 49 traps set. Sparse vegetation among the rocks - Barrel cactus, Elephantaphrium, Palo Verde, Creosote, and Cardone. Testes 15 and 11 mm. May 13 4 miles N. La Paz, Sea Level, Baja California One male (#182) caught in live traps set on
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Quast 1948 Perognathus spinatus 3 May 15 two mile N of La Paz, Sea Level, Baja California rocky hillside east of camp. Growing in that area were Ironwood, Elaphrium, Opuntia cholla, Lumboi and Cardone. Specimen had enlarged testes. May 16 Same Location. One male (#184) caught on rocky hillside east of camp last night. May 17 Trujillo, 1700 ft, Baja California Six males + one female caught last night in inside of brush fence surrounding an abandoned cornfield about 100 yards long and 30 yards wide. Field was of sandy soil surrounded by rocky soil on which the fence was built. All the P. spinatus were caught on or near the rocks. All the males had enlarged testes; the female had no embryos. Specimens catalogued no. 187-193 incl. All the specimens here were larger and heavier than those of the La Paz district and parts north of that. May 18 Same Location. 45 live traps set in same location as previous night (see paragraph above) yielded 3♂ (#200, 201, 205) and 4♀ P. spinatus. None of the female were pregnant although one was lactating. All males had enlarged testes. May 20 Same Location. Three males and one female (#220-223 incl.) caught in same location last night as traps had been set twice before, namely along brush fence just east of camp. The female had no embryos.
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Quest 1946 Pernathus spinatus 4 May 23 Brena Vista, 25' ft, 23°35'N, 109°41'W, Baja California One male and one female (#238, 239) caught in live traps set last night along brush fence surrounding a vegetable field in an arroyo (wash) north of camp. About twenty of the fifty traps were set along the fence, the remainder being set in the wash proper among the Lumbi, Palo Verde and Mesquite in likely looking spots. The brush fence only yielded mice, and only the about two were caught. One possible explanation for the low yield is that there was a full moon last night with no overcast. The female was lactating but contained no embryos. June 3 km N San Jose del Cabo, 250' ft, Baja California Two males and two females caught last night in live traps set along base of hillside, at border of sandy wash, 100 yards south of here. Neither of the females had embryos. Animals caught among rocks in which Lumbi, Mesquite, Cardone, Pitaya Dulce, and Prickly pear were growing. Specimens #306-309 incl. June 7 Punta Gasparino, 10' ft, 23°16'N, 110°9'W, Baja California Several caught in live traps last night by Murray and Teoi. Traps were set in beginning of rocky soil about 100 yds back of beach.
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Quest 1948 Depodomys agilis April 21 Agua Hedionda 32°30'N, 116°16'W Baja California One female (#81) caught in live traps baited with bird seed and set among Redslank. soil covered with thick layer of Redslank debis with granite gravel base. Temperature dropped to 32°F during the night, but the specimen was still living when picked up in the morning although in a very torpid state. April 25 1/2 mi by road south of El Marmol, 2200 ft Baja California One female caught (#93) in wash among large ganite boulders last night. Temperature dropped to 43°F last night, but the specimen was healthy and active when the trap was opened in the morning. June 21 San Jorge, 50 ft 25°44'N, 112°07'W Baja California Several caught by Tevis & Murray on hill east of camp at this location.
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Quast 1948 Dipodomys merriami 1 April 7 E. side Cocopal mts, 21 mi SSE Mexicali, Baja Calif. 1♂ + 1♀ caught at night in open space on coarse sand wash on alluvial fan. April 17 Cerro Prieto, 30 ft 20 mi SSE Mexicali Baja Calif. None caught by my live traps since above. April 25 12½ mi by road south of El Manantial, 2200 ft Baja California One male + one female caught last night in fine gravel wash among boulders (#91, 92). The female had one embryo of 18mm. Temperature dropped to 43° F last night and specimens were in a sluggish state when the traps were opened this morning. April 28 30 mi SE Mesquite 600 ft Baja California Two males caught (#101, 102) in sand under cholla and grease-wood last night. Traps set at 9:30 PM and were baited with bird seed. May 4 Mulege 25+ ft Baja California One male Dipodomys merriami caught by Dr. Benson in Museum special trap baited with walnut and set in sandy wash last night. Growing in the wash was Mesquite, Creosote, and Palo Verde. Specimen was put up by myself (#127). May 7 Bahia Concepcion 13 mi SE Mulege Baja California One female (#149) caught in live traps set among large "Mangle Dulce" bushes in sandy wash N.E. of camp last night. Traps were baited with bird seed. The female contained no embryos.
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Quast 1948 Dipodomys merriami 2 June 3 bemi N. San Jose del Cabo, 250+ ft, Baja California One caught here by Murray last night. June 17 W end Llanos de Hiley, 50+ ft, Baja California One male (#320) caught in rat trap baited with walnut last night. Specimen was caught in edge of sand dunes near lake bed. Signs plentiful in sand and burrows common among Ocotillo and Cholla growths. The sand dunes are found on the periphery of the long series of wet weather lake beds that occur in this region. None were caught in 100 live traps set in flat lake bottom among short bushes and on dry, cracked mud by Dr Benson and myself. Perognathus baileyi on the lake bottom with a few on the sand dunes. Dipodomys merriami on the sand dune but not extending into the flat, packed soil. June 19 San Jorge, 5+ ft, 25°44'N, 112°05'W, Baja California Two males caught #388, 389 in hard packed sand of hill east of camp last night. Specimen caught in live traps baited with Bermuda grass seed along with Perognathus arenarius and baileyi. Habitat of open hard-packed reddish sand between clumps of Ocotillo, Frutia, Cholla, Petaya agris and Lemboi—most of which are heavily parasitized with Orchilla.
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Quest 1948 Depodomys merriani 3 June 20 San Jorge, 5 ft, 25°44'N, 112°07'W, Baja California One female # 406 (No Embs) caught in live traps in same habitat as previous night. June 23 Santa Rosalillito, 25 ft, SE end Bahia de Concepcion, Baja Calif. One male # 435 obtained in forty-eight live traps set on sandy, flat ground bordering wash at this place. Slightly less than a full moon tonight and last night. The area is heavily grazed by cattle and the vegetation - Pitaya azia, Saramboulo, Cardone, Mesquite occurs in widely separated mounds with clear sand in between. Around these patches of vegetation the sand has been built up in mounds and in these sand mounds burrows are common. Traps set near and under these vegetation patches also caught one of this species and two Perognathus arenarius. Traps set by others of the group last night caught nothing.
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August 1948 Reithrodontomys megalotis April 24 Mission San Fernando 1500 ft. Baja California. Three caught, males, in association of bunch grass, tule and mesquite in marsh below the mission. Traps baited with walnut. Specimens #88, 89, 90. Temperature dropped to 32°F last night and it was clear, with a full moon. Traps set within 100 feet of running water.
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Quest 1948 Peromyscus californicus April 2 Agua Hedionda 32°30'N 116°16'W Baja California Two caught, 1♂ + 1 lactating ♀, in leaf debris under Redbanks. One caught in live trap baited with birdseed, the other in a Schuyler trap baited with dried peach and set next to granite boulders. Temperature Dropped to 32° during night, but specimens in live trap remained alive and apparently healthy. (#82 + 83).
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Quast 1948 Peromyscus crinitus April 10 Punta San Felipe, 50+ feet, Baja California 2 caught in live traps set among rocks on large hill east of camp. April 12. 9 mi W. Punta San Felipe, 200+-ft, Baja California One caught on decomposed granite hillside with one Perognathus spiniatus and one Perognathus eremicus. 50 live traps were set. #46. April 15 Cerro de Centurilo 300 ft 3 mi WSW Mexicali, Baja California.. Two caught in live traps baited with ground whole corn in small meandering wash in alluvial material below rock mountainside. specimens put up by Tevis + Murray and cataloged in their books under this date. April 16 2F+2? caught in live traps night of 15th on alluvial material below bare mountain slope. Traps were baited with ground whole corn. (#51,52,53,+59).
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Quest 1948 Peromyscus eremicus 7 April 11 Punta San Felipe, 50+ ft. Baja California One caught in live trap set on rocky slope of mountain in back of camp. Specimen escaped in process of killing. April 18 Cerro Prieto 30 ft 20 mi SSE Mexicali Baja California Two females with embryos caught in rocks 10 feet from mesquite - mud flat association last night. May 5 Bahia Concepcion 13 mi SE Mulaca, Baja California Two females with embryos caught in rocks above sandy area in back of beach. Specimens (#136 & 137) had embryos of 4 and 11 mm. #136 had two embryos on its left side, #137 had one on each side. Sandy area contained Cholla, Cardon, Mesquite, and Pitaya. Caught in same habitat were 4 Perognathus spinatus. May 10 San Jose de Comondú 200 ft Baja California Four females (164-167 mel) caught in live traps set along running water of ditch at arroyo bottom. Specimens were caught in traps set near town in Bermuda grass and beneath the palm trees. None of the females had embryos. One had a swollen uterus. Live traps were baited with bird seed. May 15 4 miles N La Paz, Sea Level Baja California 3♂ and one ♀ (#178-181 incl) caught in live traps baited with bird seed last night. Traps were set among porous porous lava rock fragments on hillside east of camp. Female had two embryos.
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August 1948 Peromyscus eremicus 2 May 16 4 miles N of La Paz, Sea Level, Baja California One ♀ (#183) caught last night on rocky hillside east of camp. Specimen was lactating and had two embryos.. May 18 Trunfo, 1200 ft. Baja California One male and one female (#206, 204) caught in live traps set around inside of brush fence last night. Brush fence surrounds an abandoned cornfield about 100 x 50 yards in extent. The female contained no embryos. Traps set in same location previous night caught no Peromyscus. May 20 Same Location. One ♀ (#224), with no embryos captured in live traps set along identical route as traps had been set twice before. June 12 La Laguna, 6200 ft., Sierra de la Laguna, Baja California 2 ♂ (#348, 349) caught last night in Museum Special traps baited with walnut. Traps were set in rocky canyon at east end of La Laguna among willows, grass, and large granite boulders. All traps were set within 5 feet of a running stream. Cought in same habitat as Peromyscus truei. July 12 24 mi N.W. Punta Prieta, 2000+ ft., Baja California One male #452 caught in live trap set on rocky hill west of camp last night (see Journal p. 150). None of the 47 other traps were disturbed.
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Quast 1948 Peromyscus maniculatus April 21 Agua Hedionda 32°30'N 116°16'W Baja California Three caught, 19-20°, last night in leaf debris under Redshank. Temperature dropped to 32°F during the night but specimens remained alive and active and had to be killed in the morning (#84,85,86) Live traps baited with bird seed. April 24 Mission San Fernando 1500 ft Baja California Three caught, one saved (#87) in bunch grass-tule-mesquite association in marsh below the mission. Traps were baited with walnut and set in cow paths and along edge of water. Minimum temp last night was 32°F, it was clear with a full moon. June 20 San Jorge, 51 ft, 25°44'N, 112°07'W, Baja California One male caught (#407) in 50 Museum Special traps baited with walnut and set along thin strip of mangrove N. of camp last night (see map Journal pg. 130). The mangroves in this region are from five to twenty feet deep and extend from 20 feet N. of camp to a large mangrove thicket at the north end of the estero. All the traps were set on top of accumulated mangrove leaves and debris deposited at the high-tide mark and as a result were set for the most part under the branches of the mangroves. This is the place where last nights specimen was caught. Almost a full moon last night.
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Quest 1948 Peromyscus maniculatus 2 June 21 San Jorge, 5+ ft, 25044'N, 11207'W, Baja California Three males (#417, 418, 419) and one immature male caught in Museum special traps baited with walnut and set at north end of estero last night. Traps were set in area bordered by "Mangle Dulce" on one side and a thick, stunted mangrove thicket on the other and on boggy ground full of crab burrows on which composite plants formed a sparse cover. The specimens were caught in traps set under the Mangroves and "Mangle Dulce" and the greater percentage of the traps set in the boggy open area between yielded nothing but several crab pinners. The line of "Mangle Dulce" bushes formed the dividing line between dry and boggy ground and the Peromyscus maniculatus were caught under them on the wet side while Perognathus arenarius were caught on the dry side in live traps only a few feet away. Dr. Benzen, Tevis and Murray have been consistently setting their Museum specials in and on top of the Mangroves in the thickets south and north of camp and have caught a great number of this species, the number caught dropping off very rapidly as the traps leave the mangroves. Although the mangroves are flooded by the high tides, it is evident that this species prefers and spends its entire time in the mangroves. In this area it is not to be
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Quest 1948 Peromyscus maniculatus 3 June 21 San Jorge, Stk, 25°44'N, 112°07'W, Baja California caught far from their dark, damp, cover. Traps set in the higher branches of the mangroves caught this species. The series caught is highly variable in weight and size in relation to pelage state.
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Quest 1948 Peromyscus truei June 12 La Laguna 6200 ft, Sierra de la Laguna, Baxi Calil. Two caught last night in Museum special traps baited with walnut. Traps were set in canyon where the stream exits the flat, and set among willow, grass and large granite boulders. North of the specimens (# 350, 351) had embryos. These were caught in the same habitat as two Peromyscus eremicus. All traps were set within 5 feet of running water. Peromyscus truei have also been caught near other springs and streams about La Laguna by others of this group. June 13 Lane Tratini. Two males caught in same trap line as above last night. One was so badly eaten by ants it had to be abandoned. Both were caught within 4 feet of the running water under dense willows and near green grass. No Peromyscus eremicus caught in trap line last night.
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Quast 1948 Neotoma lepida April 9 Punta San Felipe, 50+ feet, Baja California 7:15 AM. 10 Schuyler traps set among volcanic rocks at top of talus slide on hill in back of camp caught 1 M, 2 F Neotoma lepida. The other traps were not sprung. The rocks contain pockets usually about 1 ft wide, 6 in high + 6 in deep with sandy floors, most of which contain Neotoma droppings. One specimen was eaten around the ears and eyes by small ants. April 10 One female Neotoma lepida caught in Schuyler traps set in identical positions as previous night. No other traps were disturbed. May 5 Bahia Concepcion 13 mi SE Mulege Baja California Two caught by Murray in Museum Special set out last night. May 15 4 miles N of La Paz, sea level, Baja California One male (#177) caught in Schuyler trap set among boulders near crest of hill east of camp. Specimen had enlarged testis. One other was caught by Murray and prepared by him. Boulders had quite dense tall grass growing around them with a few Cardonites. May 18 Trunfo, 1700 ft, Baja California Three caught by Teros in Schuyler traps set along brush fence surrounding abandoned cornfield. Schuylers were set along my live trap line.
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Quest 1948 Neotoma lepida 2 May 18 Taunton, 1200 ft, Baja California One caught by Tevis at 5:00 P.M. in the afternoon in Schuyler trap baited with dried apple. Trap was set beside a brush fence just east of camp. Species very abundant in this area. May 26 El Carrizalito, 1400 ft, 5 mi N. Santiago, Baja California One male and one female (#262, 263) caught in Schuyler traps set around and in granite boulders on hillside 200 yards from camp. Female had 2 emb of 37 mm apices. Traps were set last night and baited with dried peaches and apricots dried apples.
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Quast 1948 Ondatra zibethica April 17 Cerro Prieto 30 ft 20 mi SSE Mexicali, Baja Calif. One seen in small irrigation ditch approx 3 mi N. Cerro Prieto at about 5:30 P.M. yes- terday. Ditch was bordered by tulles.
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Quest 1948 Canis latrans April 11 Punta San Felipe, 50' ft, Baja California One seen 6:30 A.M. 100 yds west of camp. The coyote came up from the beach to a round pile of stones near which the carcass of another coyote trapped by Dr. Benson was lying. It ran off when I called to Dr. Benson. April 29 Mission San Ignacio - 500 ft, Baja California Heard at Punta Prieta, and a sad en- counter with them at our camp near El Arco. At the El Arco camp I had two traps carried off by them and Tevis had two live traps badly chewed and man- gled although they were not heard that night.
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Species Accounts Reptiles
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Quart 1948 Phylodactylus unctus May 10 San Jose de Comondú 200 ft Baja California specimen no. 168 caught at 8:15 last night on lava boulders 3/4 mile SW of town. The air was beginning to cool at that time, but the substrate on which the specimen was found felt quite warm to the touch. The habitat was large lava boulders with rocky and powdery soil in between in which Opuntia colla, creosote and other desert shrubs were growing. The boulders were about 70 feet from the sandy arroyo floor with its palm trees and about an equal distance from lava cliffs overhead. Subsequent searching revealed no other geckos in the area. Minimum temperature last night was 56°F, it being quite cool at 11:00 pm last evening.
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