FIELD BOOK OF MAMMALS 



length, 14 inches; tail vertebrcE, 2,.^ inches; hind foot, 2 

 inches. Found from the Stikine River (about latitude 56° 

 N.) and the Ogilvie Range (about latitude 65°N.) in 

 northern British Columbia and southern Yukon. 



Nushagak Ground Squirrel. — Ci tellies plesiiis ablusus Osgood. 

 Larger than typical plesiiis which it resernbles in color; hairs 

 of the tail with two or more annulations of black (fall 

 pelage). Dorsal region and rump brownish spotted with 

 grayish white; sides of head, neck, shoulders, and nape 

 grayish; underparts dull grayish white with wash of creamy | 

 white on belly; feet creamy white; tail below, with tawny \ 

 medial area banded with black; tip of tail grayish white 

 (fall pelage). Total length, 16 inches; tail vertebrae, 4 

 inches; hind foot, 2.4 inches. Found on the base of the 

 Alaskan Peninsula on the higher ground ; along the Nusha- 

 gak River and down to the tidal mud flats in places. 



Stone Ground Squirrel. — Citellus stonei Allen. 



Very similar to plesiiis ablusus and perhaps indistinguish- 

 able from it. Upperparts mixed brownish, grayish, and 

 dusky, with small irregular spots of grayish; grayish on 

 sides of neck, face, and shoulders; nose to top of head hazel; 

 forefeet pale yellowish white; hind feet deep buffy; tail 

 above, mixed gray, buff and black, the hairs broadly 

 banded with black, underside of tail pale ochraceous banded 

 with black and edged with grayish; underparts grayish 

 washed with buffy. Total length, 14 inches; tail verte- 

 brse, 3.5 inches; hind foot, 2.4 inches. Found on the 

 Alaska Peninsula in the region of Pavlof Bay; limits of 

 range unknown. 7 ,• , 



Shumagin Island Ground Squirrel. — Citellus nebultcola 

 Osgood. 

 Resembling C. parryii kodiacensis "but smaller, shorter 

 tailed and apparently paler colored;" (Osgood) Total 

 length, 14 inches; tail vertebrae, 3.3 inches; hmd foot, 2.1 

 inches. Found on Nagai Island, Shumagin Islands, Alaska. 



Cape Lisbume Ground SquitTeL— Citellus beringensis (Mer- 



riam). . n • , 



Resembling typical parryii but with more yellowish on 

 dorsal region, whitish spotting more distinct, and larger 

 nose patch. Upperparts fulvous, palest on back, with dis- 

 tinct spotting of buffy whitish ; rusty red on nose and under- 

 side of tail. In winter pelage nose patch is brighter. 

 Found on Cape Lisbume (Coal Veins) Alaska. 

 Richardson Ground Squirrel; ^lickeridiil.— Citellus nchard- 

 sonii (Sabine). . , . , •. v 1 . 



A medium-sized Ground Squirrel of rather uniform light 

 yellowish to grayish coloration; tail short and not very 

 bushy • ears very small. Upperparts buffy yellow to grayish 

 washed with buffy ; fine irregular light spots or wavy mottling 

 on dorsal region ; sides of neck, limbs and underparts vary- 

 ing from rich buffy to grayish; tail above mixed blackish 



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