Palmer 1934 Marile General Account 650 St., North Side of Claremont Campg, a, Berkeley, Alameda Co., Calif. Trapped higher up the hillside than on Mar. 14, but in the same general area. Set 15 mouse traps. Four in Microtus runways where I took nothing. Two on large flat rocks in which I took a ♀ Reithrodontomys megalotis longicaudus. Three were set under Artemesia on open, gravelly, dry ground. In one of these took a ♂ Perognathus c. californicus (#18). Six were set in the mouths of small burrows ranging from 1"-2½"in diameter. In one under the edge of a large rock took a ♂ Perognathus c. californicus (#20). In another in Artemesia on sparsely covered part of hillside took ♀ Perognathus c. californicus. (#19). At the mouth of a small burrow about 1¼" diam- eter took one ♂ Reithrodontomys megalotis longicaudus. He was alive, only caught by the tail, so I took him home but he only lived for 4 days.