WHITE-FOOTED MOUSE 



6.8-7.5 inches; tail vertebra, 3.3-3.9 inches; hind foot, 

 .8-.88 inch. Found in "Nova Scotia and neighboring parts 

 of eastern Canada; west to central Maine." (Osgood) 



Grand Manan White-footed Mouse.^ — Peromyscus manicu- 

 latiis argentatus (Copeland and Church). 

 ResembHng abietorum but with shorter tail and grayer color- 

 ation. Upperparts grayish grizzled with dusky. Total 

 length, 6.8-7.8 inches; tail vertebrte, 3.3-3.7 inches; hind 

 foot, .8-.88 inch. Found on "Island of Grand Manan, New 

 Brunswick, Canada." (Osgood) 



Grindstone Island White-footed Mouse. — Peromyscus mani- 

 culatus eremus Osgood. 

 Darker in color than abietorum and tail shorter; paler and 

 smaller than typical maniculatus. Upperparts russet 

 sprinkled with dusky ; underparts creamy v/hite. Found on 

 Grindstone Island, Magdalen Islands, Quebec. 



Cloudland White-footed Mouse. — Peromyscus maniculatus 

 nubiterrcB (Rhoads). 

 Resembling gracilis but slightly smaller and with broader 

 and more clearly defined dusky dorsal area; pelage very 

 soft. Upperparts Prout-brown made by mixture of russet 

 and blackish; broad median dorsal area blackish brown. 

 Total length, 6.8-7.5 inches; tail vertebrae, 3.5-3.9 inches; 

 hind foot, .8-. 84 inch. Found in "Allegheny and Blue 

 Ridge Mountains and adjacent ranges from western Penn- 

 sylvania south to western North Carolina, and northeastern 

 Georgia. Canadian Zone." (Osgood) 



Boreal White-footed Mouse; Arctic Deer Mouse. — Peromys- 

 cus maniculatus borealis (Mearns). 

 Resembling typical maniculatus, but tail shorter. Upper- 

 parts cinnamon, heavily sprinkled with dusky, no concen- 

 tration of the darker color along median dorsal area; black- 

 ish orbital ring and whisker spot ; underparts creamy white. 

 Total length, 6-6.9 inches; tail vertebra, 2.5-3.1 inches; 

 hind foot, .8 inch. Found in "Interior of northwest 

 Canada; from southeastern Saskatchewan north along the 

 Mackenzie River at least to Fort Norman; west to the 

 upper waters of the Yukon, and thence south to eastern 

 Alberta, Canadian and Hudsonian Zones."" (Osgood) 



Washington White-footed Mouse. — Peromyscus maniculatus 

 oreas (Bangs). 

 Large in size; tail long; color dark and rich. Compared to 

 borealis darker and richer in color ; tail and hind foot longer ; 

 ears larger. Upperparts cinnamon to russet with heavy 

 sprinkling of dusky most noticeable in middle of dorsal 

 region; feet white but forearms and "ankles" dusky; under- 

 parts creamy white. Total length, 7.8-8.6 inches; tail 

 vertebrae, 4.2-4.8 inches; hind foot, .88-.96 inch. Found in 

 "Mountains and coast of western Washington, north to 

 southern British Columbia, south to Columbia River." 

 (Osgood) 



351 



