Mymal Leonz 1969 Journal 75 3 mi. NW Morope, 100 ft., Dept. Lambayeque, Peru Aug. 15 (sat.) display. Perhaps it is species specific, or maybe it is indeed a reaction to the temperature of the sand. When I saw the display yesterday it was quite list. Maybe it's just coincidence, but the lizards I've seen so far are sequentially larger & larger. I wonder if lizards have the equivalent of roosting places - special places where they go each morning to warm up. The sky is overcast again and lizard activity is less. 11:30 am - on my way back to camp I saw a lizard running along the soft part of the sand dune (MAL 291). It buried itself and I dug it out. Dr. Koford shot a couple of the band skaters lizards. They are similar to Cnemidophorus tessilatus. He got 2 Mus in his snares too. None of the Mues seem to be breeding. 2 mi. SE Morope, 100 ft., Dept. Lambayeque, Peru We arrived here at about 4:30 pm. It is a mesquite, sandy desert area not too far from cultivated places. I set 28 small shermans and 35 large shermans in a line along a brush fence, under which I saw little nice highways. Dr. Koford set sweep trays, and Ray set 20 small shermans and about 25 large shermans under bushes & out on the sand. Here we found tracks here, too. After 6:00 p.m. the fog came in & down and it is becoming quite windy & cold.