O. Memmler 1943 Pterognathus californicus May 26, Galician Range, 1500 ft., 5 1/2 mi. ENE Soledad, Monterey Co., Calif. Three ♀ and 2 ♂'s were caught in 5 out of 39 live traps set across and along the edge of grassy hillside with Adenostoma along the edges and 4 Blue bushes scattered through the middle in the grass. Three were caught on mounds in the grass near the blue bush. One immature was caught on a mound near the Blue Bush and Artemesia. One was caught along the margin where the old grass & Artemesia meet the new barley field. One ♀ #175 had 6, 6 mm embrio. May 27, Out of 50 traps set in similar habitats as the night before 3 caught pocket mice. The ♀ adult #185 had 5, 1mm embro. One was a small adult, the other an immature male. These were caught on mounds in the grass near Adenostoma. The best place to set for these mice seems to be where holes and open soil is present, where the grass is absent for one or two feet across and where the soil looks recently disturbed by digging. There are often holes that appear to be plugged as well as open holes near successful sets. May 28, Out of 50 live traps set on a brushy hillside, 3 caught pocket mice, 1 ♀ and 2 ♂'s. Two were caught near wild Buck Wheat, the other was under Lotus near blue bush. One was caught near a bare of some large animal, perhaps a Badger.