PEARSON 1948 31 Prisoner's Harbor, Santa Cruz Island, Santa Barbara Co., Calif. Sept. 1, 1948 1223 Corynorhina rafinesquai 101x50x11x36 6.4 g. captured as in 1216. Nipple tiny, Ovaries smaller than most, Rt. horn longer, both ovaries large. 1224 Hyla captured Aug. 31 dead house. September 2 1225 ♂ Peromyscus maniculatus santacruzae 183x85x21x19 23.2 g. along wall along "stream" bed near camp, T.tache 12 mm., Hide with a few dark patches dorsad. 1226 ♀ Corynorhina rafinesquai 109x51x11x36x 10.0 g. captured daytime in attic of abandoned house. Nipple smallish. Rt. horn of intestine shorter than left. No large follicles 1227 ♀ Corynorhina rafinesquai 108x50x11x39 11.5 g captured as 1226. Nipple medium. Some mammary tissue, traces of milk expressible. Medium follicles in Rt. ovary, small follicle in left. 1229 ♂ Corynorhina rafinesquai 102x46x11x37 9.4 g captured in house during day at Christy's Ranch, W. end of island. One other captured in same body and one other Corynorhina escaped. Testes scrotal epidid columns dilated, without sperm. Testis with numerous mitotic activity but no sperms, Interstitital cells large + glandular but not abundant. 9 mm., tip of epidid. blocked. 1229 ♀ Corynorhina rafinesquai 99x46x10x36 8.8 g. as 1228. Testes scrotal, tip of Epidid. pigmented, T.tache 8 mm. spermatozoa as in 1228. 1230 Snake Ridge part of attic at Christy Ranch, W. end of Santa Cruz Island. 1231 Lizard crochet Christy Ranch, W. end of island