O. P. PEARSON 1947 2 catalogue Sugar Canyon, 8200 ft., Sweetwater Mtns., Mono Co., California July 23, 1947 1017 ♂ Zapus princeps 225 x 136 x 32 x 15 33.6 g. muscular. Hide prime quite fat, skin soaked in gasoline. testicle 6 mm., grayish, 1018 ♂ Sorex palustris manigeti 159 x 79 x 21 x 6 17.0g. overnight. Tail almost naked, testicle 6.5 mm., copular glands 6 mm. Hide not prime 1019 ♂ Lagurus curtatus curtatus 115 x 26 x 17 x 9 17.5 g. In tall bunch grass on hillside. Testicle 9 mm., Hide not prime on head and rump. 197 x 81 x 30 x 16 47.3 g. Shot in meadow, 192 x 75 x 30 x 16 36.2 g. Trapped in 1020 ♂ Entomias amoena Tree among sage, deer brush, and pine. Testicle 5 mm. antleries above comp. O.G. small. 1021 ♀ " " 1022 ♀ Myotis volans interior 94 x 42 x 8 x 14 6.6 g. Shot. No embryos 1023 ♀ Entomias amoena Probably same species as many others recorded as June. O.G. slender. July 24, 1947 1024 Toad caught in snaptrap by stream overnight. 1025 ♂ Sorex vagrans amoenus 94 x 40 x 12 x 6 4.2 g. Testicle small. 1026 ♀ " " " 99 x 40 x 12 x 6 4.1g. No emb. 1027 ♂ Sorex palustris manigeti 162 x 51 x 20 x 6 15.2 g. Vagina and intestine very stout but not pregnant. Not prime on front and mid back. 1028 {Erithizon dorsatum epixanthum ♀ Porcupine 100 x 175 x 40 x 33 14 lbs. Shot by Benson in fir. Old stant, left horn with indefinite swelling, left overly slightly larger than right, no corpora seen.