FIELD BOOK OF MAMMALS 



with whitish or yellowish; ochraceous or buffy stripes above 

 and below the eye and a dark stripe passing through eye; 

 flanks and sides tawny brown or chestnut; hands and feet 

 ochraceous to tawny. 



Underparts. — Much lighter colored than above, generally 

 whitish, sometimes with suffusion of buffy or ochraceous; 

 underside of tail rufous, bordered laterally with blackish 

 and fringed with gray. 



Winter pelage duller and darker, with less reddish on 

 upperparts. 



Young. — Like adults but colors less contrasting. 



Measurements. — Total length, 9 to lo inches; tail vertebrae 

 3.5 to 4 inches; hind foot, 1.4 inches. 



Geographical Distribution. — Eastern North America from 

 latitude 49° through northern Illinois, Wisconsin, Minnesota, 

 Michigan, Iowa, and eastward to the Atlantic; south to about 

 latitude 34°. 



Food. — A great variety of seeds, grains, nuts, acorns, berries, 

 etc., but including some animal food such as insects, birds' 

 eggs, and young Mice. 



Enemies. — Snakes, Hawks, Weasels, Foxes, Wildcats, 

 Badgers, and other small carnivores. 



Species and Subspecies of the Genus Tamias 



Eastern Chipmunk. — Tamias striatus striatiis (Linnaeus). 

 As just described, found on the Atlantic seaboard from 

 Georgia north to southern Virginia and Ohio. 



Gray Eastern Chipmunk. — Tamias striatus griseus Mearns. 

 Larger, grayer than typical striatus, and with more sub- 

 dued color pattern. Total length, 10.9 inches; tail verte- 

 brae, 4 inches; hind foot, 1.46 inches. Found west of the 

 Great Lakes, in the upper Mississippi Valley. 



Lyster Chipmunk. — Tamias striatus lysteri (Richardson). 

 Noticeably paler than typical striatus, with rump bright 

 yellowish red. Total length, 9 inches;' tail vertebrae, 3.4 

 inches; hind foot, 1.36 inches. Found in region from 50° 

 north latitude south to northern New York and west to 

 Ontario and Michigan. Plate XXII. 



Bangs Chipmunk. — Tamias striatus venustus Bangs. 



Dorsal stripes shorter, but colors brighter and more intense 

 than in typical striatus. Total length, 10.5 inches; tail 

 vertebras, 4 inches; hind foot, 1.5 inches. Found in the 

 extreme southwestern limits of the range of the striatus 

 group, Oklahoma. 



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