WHITE-FOOTED MOUSE 



annulations; ears of good size, only thinly covered by hair; 

 eyes rather large; pelage soft; soles of hind feet with six 

 tubercles, covered with hair except about plantar tubercles; 

 color pattern distinctly bicolor, upperparts dark brown, 

 underparts white; nocturnal in habit. 



Color. — Sexes indistinguishable in color, 



Upperparts. — Dark brown, with yellowish tinge, slightly 

 darkened along median dorsal region from shoulders to base 



Fig. ']2>. White-footed Mouse 



of tail; blackish about eyes and base of whiskers; ears dark, 

 edged with grayish ; a small tuft of woolly white hairs at ante- 

 rior base of ear; tail brownish black above, white below, with 

 clear line of demarcation between; feet white. 



Underparts. — Clear white, but with some of the slate-colored 

 basal pelage showing through in places. 



Immature. — Upperparts a dark mixture of black and buff; 

 dorsal region almost completely black; tail black above; ears 

 black, edged with whitish. 



Very Young. — Slate-gray with whitish wash. 



Measurements. — Total length, 7-8 inches; tail vertebrae, 

 3-3.8 inches; hind foot, .8-. 9 inch. 



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