Microtus longicaudus vellerosus J. A. Allen
Long-tailed Meadow Mouse
Microtus vellerosus J. A. Allen, Bull. Amer. Mus. Nat. Hist., 12:7, March 4, 1899. (Type from upper Liard River, British Columbia, Canada.)
Microtus longicaudus vellerosus Anderson and Rand, Canadian Field-Nat., 58:20, April 1, 1944.
Specimens examined.—Total 127, as follows: Alaska: N side Salcha River, 600 ft., 25 mi. S and 20 mi. E Fairbanks, 1. Yukon Territory: 6 mi. SW Kluane, 2550 ft., 2; McIntyre Creek, 2250 ft., 3 mi. NW Whitehorse, 10; ½ mi. W Whitehorse, 1; SW end Dezadeash Lake, 18; 1½ mi. S and 3 mi. E Dalton Post, 2500 ft., 24. British Columbia: Stonehouse Creek, 5½ mi. W jct. Stonehouse Creek and Kelsall River, 20; Hot Springs, 3 mi. WNW jct. Trout River and Liard River, 4; ¼ mi. S jct. Trout River and Liard River, 15; S side Toad River, 10 mi. S and 21 mi. E Muncho Lake, 27; SE end Muncho Lake, 4; Summit Pass, 4500 ft., 10 mi. S and 70 mi. W Fort Nelson, 1.
Remarks.—Specimens from 1½ miles south and 3 miles east of Dalton Post and from Dezadeash Lake in Yukon Territory and from Stonehouse Creek in British Columbia are referred to M. l. vellerosus although in color of upper parts they show close relationship with M. l. littoralis. These specimens are less gray and more brown than specimens more typical of M. l. vellerosus from the Liard River area.
Alcorn found the long-tailed meadow mouse in widely separated areas. Most specimens were obtained in grassy situations near water or on moist ground. The single male from Summit Pass in British Columbia was taken above timberline.
Microtus longicaudus littoralis Swarth
Long-tailed Meadow Mouse
Microtus mordax littoralis Swarth, Proc. Biol. Soc. Washington, 46:209, October 26, 1933. (Type from Shakan, Prince of Wales Island, Alaska.)