Hoffmeister 1939 Oethromyops zapperi July 16 1 mi. SW Satus Pass, 3200 ft., Klickitat Co., Wash. Caught 2 male specimens in traps set along the small stream in this Transitional Zone area. There was a rather heavy brush growth along the stream. July 27 Stayawhile Spg., 5150 ft., Columbia Co., Wash. Caught 2 specimens in traps set near the creek here. Vegetation and fallen logs are thick along the stream. This is in Canadian zone. Caught 1 specimen about 15 feet from the stream. July 28 Caught 1 specimen along the trail at some distance from the stream. July 29 Caught 1 specimen in a marshy meadow that was not very close to the stream, but had an abundance of tall grass. Apparently, a moist, relatively dense cover with a soft soil covering is suitable for this species.