Peterson 1935. Tapus July 29. 13 mi. N Paradise Valley, 6700 ft., Humboldt Co., Nevada. Nine caught along bank & immediate environs of Road Creek. July 30. 13 mi. N Paradise Valley, 6700 ft., Humboldt Co., Nevada. One caught on canyon slope & one in canyon bottom of Syc Creek. Tapus inhabits canyon bottoms & slopes high enough in altitude & with sufficient water to support growth of aspen & fir. Yet, not found in Cedar Creek, altitude 6370 ft. with aspen. Tapus with much loose connective tissue & even fat under skin permitting considerable free movement of skin, but not as much as in gophers & meadow mice. Some with more fat than others - a preparation for hibernation? Soft-bodied, fragile mice. Active from early evening to early morning. Skin freely moving over top of nose & able to fold over forward of the nostrils, whether able to be voluntarily executed by mouse or not known. Tender-skinned - to be handled with care. Tapus don't know how to go into traps - get skulls smashed.