Orr 1931 Meadow Valley, 21 miles S Caliente, 3200 ft., Lincoln Co., Nev. 40 June 15, 1931 and 2 Peromyscus sp.? (See Hatfield 1931, nos. 182-183.) The meriamii we caught in the valley floor, where the soil was sandy and brush clumps grew fairly far apart. The traps were set about 25paces apart. The trap line led from our small valley up along a small ridge. Here, there were rocks and Tree Gera. The majority of the Onognathus pencillatus were caught at this point, also one Peromyscus. The line led down the other side of this ridge to another sandy-earthly area where another Peromyscus, one Neotoma, and a number of meriamii were captured. One particular stretch of pure white sand covered with low brush contained nothing but Dipodomys meriamii. Captured one Sceloporus which had gone up the side of a Cottonwood tree to a height of 15 feet above the ground. Black-tailed Jackrabbits are quite common about camp, also Rock Sorex. This evening we went down four miles to a more open part of the valley where sand is quite plentiful. Set out 62 mouse traps. Saw Lasiorellus fuscipes flying before the sun had set on the tops of the hill.