Montana: Big Horn County: Rotten Grass Creek, north base Big Horn Mts., 2 (USBS); Little Big Horn River, 2 mi. from Wyoming line, 1 (USBS).
South Dakota: Custer County: Custer, 3 (USNM); Bull Springs, 6 (Clev. MNH); Beaver Creek, Wind Cave Nat’l Park, 1 (UM); Wind Cave Nat’l Park [442] Game Ranch, Cold Spring Creek, Wind Cave Nat’l Park, 2 (UM); Pennington County: Rapid Creek, 2 mi. W Pactola, 4800 ft., 3 (UM); Castle Creek, R. 2E, T. 1N, 6500 ft., 3 (UM); Nelsons Place, 3 mi. SE Hill City, 6 (UM); Palmer Gulch, 4 mi. SE Hill City, 3 (UM); Palmer Gulch, 9 (FM); no definite locality, 4 (UM).
Wyoming: Crook County: Devils Tower, flood plain Belle Fourche River, 3350 ft., 1 (USBS); Bear Lodge Mts., 4 (USBS); 15 mi. N Sundance, Black Hills Nat’l Forest, 5500 ft., 2; 3 mi. NW Sundance, 5900 ft., 17; Sundance, 2 (USBS). Weston Co.: 11/2 mi. E Buckhorn, 6150 ft., 5.
Marginal records.—Montana: Rotten Grass Creek, N base Big Horn Mts. South Dakota: Nelsons Place, 3 mi. SE Hill City; Wind Cave Nat’l Park Game Ranch, Cold Spring Creek. Wyoming: 11/2 mi. E Buckhorn, 6150 ft.
Zapus hudsonius canadensis (Davies)
Dipus canadensis Davies, Trans. Linn. Soc. London, 4:157, 1798.
Zapus hudsonius hudsonius, Preble, N. Amer. Fauna, 15:17, August 8, 1899 (part—the part from Ontario).
Zapus hudsonius canadensis, Batchelder, Proc. New England Zool. Club, 1:5, February 8, 1899 (part—the part from Quebec); Anderson, Rept. Provancher Soc. Nat. Hist., Quebec, 1941:35-37, July 14, 1942 (part—the part from Quebec excepting the Gaspé Peninsula).
Zapus hudsonius ontarioensis Anderson, Ann. Rept. Provancher Soc. Nat. Hist., Quebec, 1942:59, September 7, 1943, type from Pancake Bay (Batchawana Bay) southeast end of Lake Superior, Algoma District, about 40 miles northeast of Sault Ste-Marie, Ontario.
Type.—No type specimen designated, subspecies characterized on the basis of two specimens obtained by Major General Thomas Davies within a few miles of the city of Quebec.