Alcorn took Zapus in grassy areas at the edge of water, in an old gravel pit, and at the site of an old sawmill. Animals were taken as early as June 30 and as late as September 2.
Zapus hudsonius alascensis Merriam
Meadow Jumping Mouse
Zapus hudsonius alascensis Merriam, Proc. Biol. Soc. Washington, 11:223, July 15, 1897. (Type from Yakutat Bay, Alaska.)
Specimens examined.—Total 18, as follows: Alaska: 1 mi. SW Fairbanks, 440 ft., 1; E side Chilkat River, 100 ft., 9 mi. W and 4 mi. N Haines, 8. Yukon Territory: McIntyre Creek, 2250 ft., 3 mi. NW Whitehorse, 4; SW end Dezadeash Lake, 1. British Columbia: Stonehouse Creek, 5½ mi. W jct. Stonehouse Creek and Kelsall River, 4.
Remarks.—Specimens taken by Alcorn were compared with representatives of both Z. princeps (Wyoming, Idaho, Oregon) and Z. hudsonius (Ontario, Michigan, Kansas, Wyoming). All have been referred to Z. hudsonius although one female from Stonehouse Creek shows some tendency toward Z. princeps in external measurements, length of upper molariform tooth-row, and length of incisive foramina.
Erethizon dorsatum myops Merriam
Porcupine
Erethizon epixanthus myops Merriam, Proc. Washington Acad. Sci., 2:27, March 14, 1900. (Type from Portage Bay, Alaska Peninsula, Alaska.)
Erethizon dorsatum myops Anderson and Rand, Canadian Jour. Res., 21:293, September 24, 1943.