Catalogue Hafner, M.S. 1977 6 km S, 17.5 km E Valle de la Trinidad, 905 m, Baja California, México. 3 July tissue, blood vag. closed; old scars 2R-2L 815 ♀ Thomomys bottae 203-68-28-8 = 89g. tissue, blood testes = 4 mm.; abdomen 816 ♂ Thomomys bottae 215-68-28-7=110 g. tissue, blood vag. closed; null. 817 ♀ Thomomys bottae 202-69-27-7 = 80g. tissue, blood vag. closed; sporous, no scars. 818 ♀ Thomomys bottae 209-68-28-7=91 g. tissue, blood testes = 4 mm.; abdomen chromosomes 819 ♂ Thomomys bottae 208-70-29-8 = 95g. 4 July tissue, blood testes < 4 mm.; abdomen skeleton only 820 ♂ Dipodomys merriami 233-144-37-15=32g. tissue, blood vag. closed; null- skeleton only 821 ♀ Dipodomys merriami 220-130-38-14 = 31g. tissue, blood testes > 10 mm.; scrotal. reprod. tract 40 skeleton only 822 ♂ Dipodomys merriami 256-155-40-15=45g. tissue, blood testes = 10 mm.; scrotal reprod. tract skeleton only 823 ♂ Dipodomys agilis 253-[139]-42-17 = 63g. tissue, blood vag. closed; null. skeleton only 824 ♀ Dipodomys agilis 270-168-42-17 = 55g. tissue, blood testes = 5 mm.; abdomen chrom. 825 ♂ Dipodomys agilis 293-177-42-20 = 62g. tissue, blood vag. closed; old scars 2L, 1R 826 ♀ Thomomys bottae 198-64-28-8=105g. tissue, blood vag. closed; null. 827 ♀ Thomomys bottae 202-67-27-7 = 90g. 5 July tissue, blood testes = 10 mm.; abdomen 828 ♂ Thomomys bottae 231-78-28-8=130g. tissue, blood testes = 6 mm.; abdomen chromosomes 829 ♂ Thomomys bottae 206-72-30-8=105g. tissue, blood testes = (3 mm.); ± scrotal 830 ♂ Thomomys bottae 223-72-28-8 = 139 g. tissue, blood testes = 4 mm.; abdomen 831 ♂ Thomomys bottae 233-82-28-7=115g. tissue, blood vag. closed; sporous no visible scars 832 ♀ Ammospermophilus leucurus 180-[29]-39-15 = 103g. tissue, blood testes = 6 mm.; abdomen chrom. 833 ♂ Spermophilus tereticaudus 244-85-35-7=103g.