Hullon. 1949 Zapus trinotatus -1- Aug 10 Big Lagoon, Humboldt Co., Calif.- Collected one bird in the Sitka Spruce forest E of Camp. The trap was in an area of thick gooseberry Rubus spectabilis on the edge of an area of extensive sedge-ground covered with moss, some ferns and an overhead canopy of spruce. Trap baited with walnuts. (see form p. 1/6) Aug 12 same locality - 1 taken in a pure stand of sedge Carex under an alder canopy with scattered large spruce trees. Aug 14 same locality - 1 taken in pure stand of Carex along a still pond, in a Sitka spruce forest. Aug 15 same locality 1 taken under Carex on edge of still pond in spruce forest. 1 taken beside a log near Carex along the same pond.