_Sanders Co._: Prospect Creek, near Thompson, 1 (USBS). _Sweet Grass Co._: _near head of Big Timber Creek, 5200 ft., Crazy Mts._, 11 (USBS); Brannin Ranch, Sweet Grass Creek Canyon, 6 (UM); _Big Timber_, 1 (USBS). _Teton County_: 17-1/2 mi. W and 6-1/2 mi. N Agusta, 5100 ft., 2. WYOMING: _Fremont County_: Moccasin Lake, 19 mi. W and 4 mi. N of Lander, 10,000 ft., 1; 23-1/2 mi. S and 5 mi. W Lander, 8600 ft., 4. _Park County_: 31-1/2 mi. N and 36 mi. W Cody, 6900 ft., 7; _28 mi. N and 30 mi. W Cody, 7200 ft._, 1; _16-1/4 mi. N and 17 mi. W Cody, 5625 ft._, 14; 2 mi. S and 42 mi. W Cody, 6400 ft., 5; 12 mi. W Wapiti, 6 (LMH); _25 mi. S and 28 mi. W Cody, 6350 ft._, 5. _Sublette County_: E end Island Lake, 10,600 ft., 3 mi. S Fremont Park, 1; _N side Halfmoon Lake, 7900 ft._, 3; _W end Halfmoon Lake, 7900 ft._, 2; _10 mi. NE Pinedale, 8000 ft._, 1; _5 mi. E and 8 mi. N Pinedale, 7500 ft._, 1; 3 mi. E and 5 mi. N Pinedale, 7500 ft., 4; 19 mi. W and 2 mi. S Big Piney, 7700 ft., 3. _Marginal records._--Alberta: Boom Creek, 5600 ft., 27 mi. W Banff; Crows Nest Pass; Waterton Lakes Park. Montana: Highwood Mts.; 15 mi. S Heath, N Fork Flat Willow Creek; 2 mi. E Shriver, 6500 ft. Wyoming: 23-1/2 mi. S and 5-1/2 mi. W Lander, 8600 ft.; 10 mi. W and 2 mi. S Big Piney, 7700 ft. Idaho: 7 mi. W West Yellowstone, 7000 ft.; Prairie Creek, 12 mi. NW Ketchum, 2400 ft.; 5 mi. W Warm Lake, 7000 ft.; 1 mi. N Bear Creek R. S., SW slope Smith Mtn., 5400 ft.; N Fork Potlatch River; 13 mi. E and 5 mi. N Coeur d'Alene. British Columbia: Newgate; Vermilion Crossing, Kootenay. =Zapus princeps kootenayensis= Anderson _Zapus princeps kootenayensis_ Anderson, Ann. Rept. Nat. Mus. Canada for 1931:108, November 24, 1932. _Zapus princeps princeps_, Preble, N. Amer. Fauna, 15:23, August 8, 1899 (part). _Type._--Adult female, skin and skull, No. 10,020, Nat. Mus. Canada; near summit of Green Mountain, head of Murphy Creek, about 10 miles north of Rossland, West Kootenay district, British Columbia, at about, 6000 ft.; latitude 49° 13' north, longitude 117° 52' west; obtained on July 18, 1929, by R. M. Anderson, original No. 24. _Range._--From Glacier in the Selkirk Range, British Columbia, south to 5 mi. W Cocolalla, Bonner County, Idaho, west and north to Sullivan Lake, Pend Oreille County, Washington; and northwestward to Manning Park on the eastern summit of the Cascade Range in British Columbia. See fig. 46.