Specimens examined.—Total, 118, distributed as follows:
Alberta: 4 mi. N Marinville, 2; Blindman River, 1 (USBS); Camrose, 1 (ROM); Red Deer River, 1 (USBS); Didsbury, Little Red Deer River, 1 (ROM); Kananaskis Valley, 7000 ft., 1 (ROM); High River, 2 (ROM); Lodge Creek, 2 (NMC).
Manitoba: Shoal Lake, 6 (NMC); Oak Lake, 4 (NMC); Aweme, 7 (6 ROM; 1 USBS).
Montana: Chouteau County: Eagle Creek, 25 mi. SE Big Sandy, 3 (UM). Hill Co.: Fort Assiniboine, 1 (USBS); Bear Paw Mt’s, 20 mi. SE Fort Assiniboine, [409] 4 (USBS); head Eagle Creek, Bear Paw Mt’s, 7 (UM). Valley Co.: Glasgow, 1 (USBS).
North Dakota: Benson Co.: 4 mi. W Leeds, 1400 ft., 2; 2 mi. W Fort Totten, 1400 ft., 13; Fort Totten, 4 (USBS). Bottineau Co.: 48/10 mi. N Bottineau, 2100 ft., 2; 31/2 mi. N Bottineau, 1920 ft., 2; 21/10 mi. N Bottineau, 1800 ft., 3; Bottineau, 1 (USBS). Dickey Co.: Oakes, 3 (USBS). Grand Forks Co.: Larimore, 3 (USBS). Montrail Co.: 6 mi. N Lostwood, 2 (USBS). Nelson Co.: Stump Lake, 1 (USBS). Richland Co.: Lidgerwood, 1 (USBS); 4 mi. S Blackner, (USBS). Rolette Co.: St. John, 1 (USBS). Sargent County: 71/5 mi. E and 11/5 mi. S Oakes, 1200 ft., 6; 3 mi. W Cayuga, 1000 ft., 2. Walsh Co.: Grafton, 2. Ward Co.: Minot, 3 (CMNH). Williams Co.: Grinnell, 2 (USBS); Buford, 2 (USBS).
Saskatchewan: Wingard, near Carlton House, 2 (USBS); Fort Carlton, 1 (MVZ); Indian Head, 2 (USBS); Cypress Hills, N Maple Creek, 18 (NMC); Battle Creek, 1 (NMC).
South Dakota: Day Co.: Webster, 1 (Chic. AS).
Marginal records.—Saskatchewan: Wingard, near Carlton House; Fort Carlton. Manitoba: Shoal Lake; Aweme. North Dakota: Larimore; 4 mi. S Blackner. South Dakota: Webster. North Dakota: Oakes; Grinnell. Montana: Eagle Creek, 25 mi. SE Big Sandy. Alberta: High River; Kananaskis Valley, 2000 ft.; Red Deer River; Blindman River; 4 mi. N Marinville.
Zapus princeps oregonus Preble
Zapus princeps oregonus Preble, N. Amer. Fauna, 15:24, August 8, 1899.