Specimens examined.—Four from Alaska: N side Salcha River, 600 ft., 25 mi. S and 20 mi. E Fairbanks.
Remarks.—One ermine was caught in a rat trap; the others were taken within 50 yards of the trapped animal by attracting them with squeaking calls to within shooting range. One of the weasels approached to within ten feet of Alcorn, while he was making the mentioned call.
Mustela erminea richardsonii Bonaparte
Ermine
Mustela richardsonii Bonaparte, Charlesworth's Mag. Nat. Hist., 2:38, January, 1838. (Type from Fort Franklin, at western end of Great Bear Lake, Mackenzie district, Northwest Territories, Canada.)
Mustela erminea richardsonii Hall, Jour. Mamm., 26:180, July 19, 1945.
Specimens examined.—One from Yukon Territory: McIntyre Creek, 2250 ft., 3 mi. NW Whitehorse.
Mustela erminea alascensis (Merriam)
Ermine
Putorius richardsonii alascensis Merriam, N. Amer. Fauna, 11:12, June 30, 1896. (Type from Juneau, Alaska.)