Mayhew 1960 Journal 29. April 28 Palm Springs, Riverside Co., Calif. We continued to look until 1415, but moved during this time about 1/2 mile to Vista Chino Road. Better accretion dunes occur here. Another Crotalus cerastes was seen at 1210. In spite of the wind and cool weather (maximum temp. today was 74°F.), we captured 12 lizards of 4 species, as follows: Uma inornata - 7 (4 ad ♂; 3 ad ♀) Callisaurus draconoides - 2 (1 ad ♂; 1 ad ♀) Crotaphytus wislizeni - 2 (1 ad ♂; 1 ad ♀) Dipsoaurus dorsalis - 1 (ad ♂) Total - 12 Relatively few other animals were seen during our entire stay. Cnemidophorus tigris was the only species seen that wasn't captured (besides Crotalus cerastes). We left Palm Springs at 1435, and reached UCR at 1535, after a trip of 100 miles. April 29 Colorado Desert, Riverside & Imperial Cos., Calif. The field zoology class (20 of us) left UCR at 1205 today. We stopped for a while on the old highway between Garnet & 1000 Palms. The wind was blowing fairly hard, so few animals were seen. We reached Harper's Well at 1730 and established camp for the night. Mammal traps were set, how eaten, then we looked for nocturnal animals by Coleman lantern. One Nestoma sp. was seen. While sitting around the