Mayhew 1960 Journal 35. May 1 Colorado Desert, Imperial Co., Calif. Phrynosoma platyrhino - 2 (ad ?) Cnemidophorus tigris - 3 (1 ad ?; 2 ad ♀) Dipsoaurus dorsalis - 18 (4 ad ?; 8 ad ♀; 1 ad ?; 5 imm ?) Phrynosoma micelli - 1 (ad ♀) Colubrix variegatus - 33 (19 ad ?; 14 ad ♀) Thus, 90 animals of 9 species were handled by members of the class (reptiles). May 9 Frank Anbry & I left UCR at 1120 to return to the Glamis area. On the way, however, we stopped along the highway 6 mi. w. of 1000 Palms in Riverside Co., to collect some Dipsoaurus dorsalis. We looked for them from 1230 to 1300. Several of them had been seen sunning themselves on boulders just before we stopped. Most of those we captured, though, were in the shade of Larva diversicata. We captured 6 before we drove on. We reached the Highline Canal, east of Brawley, at 1545. We began looking for lizards along the side of the road immediately. We made one slow trip from there to the end of the pavement, 12 mi. E. of Glamis, which we reached at 1908. On this trip during the first 4 miles, 1645 to 1742, we collected 9 Phrynosoma micelli as they sunned themselves on the asphalt at the edge of the pavement. This is by far the most animals of this species we have ever seen in one day. In addition 2 dead animals were found on the road. They had been dead a short time.