Palmer 1935 Dipodomys agilis 7 mi. E Ontario, 1050 ft., San Bernardino Co., Calif. Aug 9, 1935 Caught 1 in 50 gov.-size mouse traps set 15 paces apart across a low dune of fine sand. Traps set by low plants of Ambrosia psilostachya, Oenothera pallida var.californi- ca, Nicotiana bigelovii, Salsola kali, Croton californicus, and Amaranthus gracizans(?). Junip Mt's., 850 ft., 6 3/4 mi. N.W Riverside, Riverside Co. Calif. Aug. 15, 1935 Caught 2 (18, 18) in 40 gov.-size mouse traps on a flat with hard smooth ground with moderately thick growth of low bushes of Artemisia californica, Salvia apiana and Eriogonum fasciculatum.