Idaho: Bannock County: Camp Tendoy, Pocatello, 2 (MVZ). Cassia County: Mt. Harrison, 10 mi. S Albion, 16 (MVZ).
Utah: Boxelder Co.: south fork of George Creek, 5 mi. SE Yost, Raft River Mts., 6700 ft., 1 (UU); George Creek, 7 mi. SE Yost, Raft River Mts., 6500 ft., 6 (UU); Pine Canyon, 6600 ft., 17 mi. NW Kelton, Raft River Mts., 8 (MVZ); Pine Creek, 3 mi. N Rosette, Raft River Mts., 6100 ft., 2 (UU).
Marginal records.—Idaho: Camp Tendoy, Pocatello. Utah: Pine Creek, 3 mi. N Rosette, Raft River Mts., 6100 ft. Idaho: Mt. Harrison, 10 mi. S Albion.
Zapus princeps curtatus Hall
Zapus princeps curtatus Hall, Univ. California Publ. Zool., 37:7, April 10, 1931.
Zapus princeps oregonus, Taylor, Univ. California Publ. Zool., 7:281, June 24, 1911.
Type.—Female, adult, skin and skull, No. 7991, Mus. Vert. Zool.; head of Big Creek, 8000 feet altitude, Pine Forest Mountains, Humboldt County, Nevada; obtained on June 30, 1909, by Walter P. Taylor and C. H. Richardson, original No. 777 of W. P. T.
Range.—Pine Forest Mt’s, Humboldt County, Nevada. See [fig. 46]. Zonal range: Transition and Canadian.
Description.—Size medium; back pale near Light Ochraceous-Buff with admixture of black hair forming dark dorsal band; sides lighter than back; lateral line faintly indicated; ventral surface white; tail bicolored, grayish-white to yellowish-white below and pale brown above; ears dark, edged with yellowish-white; feet grayish-white above; palatal bridge short; tooth-rows almost parallel; mastoid region of skull relatively narrow; incisive foramina wide posteriorly; narrow across zygomata; nasals relatively narrow posteriorly.
Comparisons.—For comparison with Zapus princeps oregonus see account of that subspecies.