Palmer 1935 Sorex palustris Poker Flat, 5000 ft., 12 mi. N.W. Happy Camp, Siskiyou Co., Cal. July 5, 1935 Caught a ? in one of 53 gov.-size mouse traps set in a wet meadow. This specimen was taken about 2 ft. from a small stream in an oat baited trap in tall sedges, grass, Ranunculus, and shooting stars. July 7, 1935 Caught a ♀ in one of 70 gov.-size mouse traps set in the wet meadow. Taken about 2 ft. from the stream at a bend on muddy ground under tall sedges. Had 4 embryos x 7 mm. July 8, 1935 Caught a ♀ in one of 70 gov.-size mouse traps set in the wet meadow. Taken at the edge of the stream by a quiet pool about 3 x 6 ft. on soft mud under tall sedges. Oat bait. Had 4 very small embryos. About 6 P.M. found a ♀ in one of 70 traps in the wet meadow. This one was still alive when found and bit at the trap and sniffed vigorously in my direction with vibrissae constantly in motion. The trap was on moist ground in tall sedges under dwarf willows about 9 ft. from a small stream.