728 Frrtp Museum or Naturat History — Zoétocy, Vou. XI. 
Genus TAMIAS Iliger. 
Tamias Illiger, Prodr. Syst. Mamm. et Avium, 1811, p. 83. Type 
Sciurus striatus Linn. 
Size small for a Squirrel, tail less bushy than in Sciurus; back 
conspicuously striped; cheeks with pouches which open between the 
lips and teeth; postorbital processes slender, pointed (spine-like), 
and directed obliquely backward and downward; infraorbital foramen 
small and confined to lower part of maxilla. 
Dental formula: I. 2 C2) Ba) Me 
A a Oo-0 Lt arg 
KEY TO OUR CHIPMUNKS. 
A. Back with two pale stripes and several blackish ones; total length (adult) more 
than 9 inches. 
Rump rufous chestnut. Animal occurs from northern Illinois southward. 
CHIPMUNK, Tamaias striatus, p. 128. 
Rump more cinnamon brown, general pelage grayer. Animal occurs in northern 
Illinois and Wisconsin. Gray CHIPMUNK. 
Tamias s. griseus, p. 130. 
B. Back with four pale stripes and several dark ones; size small, usually less than 9 
inches. Animal occurs in northern Wisconsin. LITTLE CHIPMUNK. 
Eutamias borealis neglectus, p. 135. 
Tamias striatus (Linn.). 
CHIPMUNK. STRIPED CHIPMUNK. SOUTHERN CHIPMUNK. 
[Sciurus] striatus LINNEuS, Syst. Nat., X ed., I, 1758, p. 64. 
Tamias striatus KENNIcOTT, Agr. Rept. for 1856, U. S. Patent Office Rept., 1857, 
p. 70 (Illinois). ALLEN, Proc. Bost. Soc. Nat. Hist., XIII, 1869 (1871), p. 189 
(Iowa). GARMAN, Bull. Essex Inst., XXVI, 1894, p. 6 (Kentucky). Ever- 
MANN & BuTLeER, Proc. Ind. Acad. Sci., 1893 (1894), p. 129 (Indiana). Rwoaps, 
Proc. Acad. Nat. Sci. Phila., 1896 (1897), p. 193 (Tennessee). Haun, Ann. 
Rept. Dept. Geol. & Nat. Resources Ind., 1908 (1909), p. 471 (Indiana). 
Howe Lt, Proc. Biol. Soc. Wash., XXII, 1909, p. 59 (Kentucky, Tennessee, 
Mississippi, etc.). Ib., XXIII, 1910, p. 25 (Illinois, Missouri, etc.). 
Tamias striatus lysteri McAtEE, Proc. Biol. Soc. Wash., XX, 1907, p. 3 (Indiana). 
Type locality — Southeastern United States. 
Distribution — On Atlantic coast from southern New York and New 
Jersey to North Carolina, westward through southern Indiana and 
southern Illinois to eastern Kansas, southward to northern South 
Carolina, northern Georgia and Tennessee. 
Special characters — Tail only moderately bushy and rather flat; back 
striped; rump rufous chestnut. Its smaller size and rufous chestnut 
rump will distinguish it from its more northern race, T. s. griseus, 
but intermediates must be expected in northern Illinois. 
