Palmer 1934 Mar 16 caught. 2. Perognathus c. Californicus Took one ♀ (# 19) in trap set in the mouth of a rather neat looking burrow in open ground between cumps of Artemesia. The burrow was about 2" in diameter. Mouse contained no embryos. Oat bait. Took one ♂ (# 18) in a trap set on gravelly, open ground under Artemesia on west facing part of slope. Check pouches contained several bits of the oat bait indicating that The trap didn't go off immediately. Testes enlarged. Mar 25 900 ft., 1/4 mi. E.N.E. of Botanical Garden, Berkeley, Alameda Co., Calif. ♂ 23 Taken in trap set on bare ground underneath a bush lupine. The torn and scattered pods of this plant indicated that some small animals had been feeding here but check pouches of this specimen were empty. A Moderately sloping hillside with some grass and rushes. Hillside dotted with Artemesia, Poison Oak, and bush lupine. The specimen had lost the tip end of his tail at some previous time and it was all healed up but with a lump at the end.