_Specimens examined._--Total 10, as follows: _British Columbia_: N side Muskwa River, 1200 ft., 4 mi. W Fort Nelson, 1; E side Minaker River, 1 mi. W Trutch, 5; Beatton River, 115 mi. S Fort Nelson, 1; 5 mi. W. and 3 mi. N Fort St. John, 1. _Alberta_: Assineau River, 1920 ft., 10 mi. E and 1 mi. N Kinuso, 2. _Remarks._--Specimens with worn pelage are conspicuously paler and grayer than those in fresh pelage. Chipmunks in early stages of molt with fresh pelage extending posteriorly to the middle of the dorsal part of the back were taken on June 19, 20, and 22; others in fresh pelage above, except for the hind quarters, were taken on June 15 and on September 2. Alcorn found this species nowhere abundant; for example, in 187 museum special traps set near Charlie Lake, 5 miles west and 3 miles north of Fort St. John, in British Columbia, he took only one chipmunk. Eutamias minimus caniceps Osgood Least Chipmunk _Eutamias caniceps_ Osgood, N. Amer. Fauna, 19:28, October 6, 1900. (Type from Lake Lebarge, Yukon Territory.) _Eutamias minimus caniceps_ A. H. Howell, Jour. Mamm., 3:184, August 4, 1922. _Specimens examined._--Total 36, as follows: _Yukon Territory_: 6 mi. SW Kluane, 2550 ft., 2; McIntyre Creek, 2250 ft., 3 mi. NW Whitehorse, 3; 2 mi. NNW Whitehorse, 2100 ft., 1; W side Lewes River, 2150 ft., 2 mi. S Whitehorse, 1; SW end Dezadeash Lake, 10; 5 mi. W Teslin River, 2400 ft., 16 mi. S and 53 mi. E Whitehorse, 1; W side Teslin River, 16 mi. S and 58 mi. E Whitehorse, 2; 1½ mi. S and 3 mi. E Dalton Post, 2500 ft., 5. _British Columbia_: 1 mi. NW jct. Irons Creek and Liard River, 2; S side Toad River, 10 mi. S and 21 mi. E Muncho Lake, 6; Summit Pass, 4200 ft., 10 mi. S and 70 mi. W Fort Nelson, 3. _Remarks._--Some of the specimens taken between Summit Pass and Toad River show evidence of intergradation between the paler and grayer _E. m. caniceps_ and the brighter and browner _E. m. borealis_. Rand (1944:41) also found evidence of intergradation between these two subspecies in this area. Along the highway, Alcorn found this species to be somewhat more abundant in the Yukon Territory than in British Columbia. He often found the animals occupying abandoned road camps; seemingly they were more numerous in these areas than in undisturbed natural habitat. Glaucomys sabrinus zaphaeus (Osgood) Flying Squirrel _Sciuropterus alpinus zaphaeus_ Osgood, Proc. Biol. Soc. Washington, 18:133, April 18, 1905. (Type from Helm Bay, Cleveland Peninsula, southeastern Alaska.) _Glaucomys sabrinus zaphaeus_ A. H. Howell, N. Amer. Fauna, 44:43, June 13, 1918. _Specimens examined._--One from _Yukon Territory_: 1½ mi. S and 3 mi. E Dalton Post, 2500 ft.