V. Memmler 1941 Sorex pacificus May 17, Russian Gulch State Park, Mendocino Co., California elev. 40 ft. Out of 31 traps set in a Riparian Marginal habitat, 4 caught Sorex pacificus. The dominate plants were: Thimbleberry, Salmonberry, Nettle and Blackberry. The one which I put up was a σ, Of the three others one was a female and the other two were males. May 20, Out of a trap line of 22 traps there were 10 catches. One of these was a Sorex pacificus. Traps were set along the same line and in the same habitat as on May 17. May 23, Out of 37 traps set 10 caught animals, one of these a g S. pacificus. 3 other species were also caught. The habitat was identical to that set on May 17. May 25, Out of 24 traps set in a Riparian - Redwood habitat, one caught a σ Sorex bairdii.. There were 7 other animals caught and 2 other species. Elevation was about 75 ft. May 26, Out of 24 traps set along the margin of a large meadow in Thimbleberries, 1 trap caught a Sorex pacificus. There were 4 other