794 MONOGRAPHS OF NORTH AMERICAN RODBNT1A. 



Var. TOWNSENDI. 

 Townsend's Chipmunk. 



Tamias toimsendi Bachm in, Journ. Acad. Nat. Sci. I'hila. viii, is:;9, 08 ; Townsend's Narrative, !«;!!», 321. — 

 Wagner, Wiegmann's Archiv, 1843, pt. ii, 44. —Audubon &. Bachman, Quad. N. Am. i, 1849, 

 159, pi. xx. — Baird, Mam. N. Am. 1857, 300, pi. xlv, fig. 4 (skull); pi. v, lig. 2(" var. eiwpcri"; 

 animal).— Cooper, Nat. Hist. Wash. Territory, pt. iii, 1859, 80.— Suckley, ib. 97, 122. — 

 Gray, Aun. aud Mag. Nat. Hist. 3d sor. xx, 1867, 435. 



Tamias totcnsendi var. coopari Baird, Mam. N. Am. 1S57, pi. v (name on plate). 



Tamias hiudsii Gray, Ann. and Mag. Nat. Hist, x, 1842, 264 ; Zool. Voy. of Sulphur, 1844, 34, pi. xii, fig. 1 ; 

 Aun. and Mag. Nat. Hist. 3d ser. xx, 18IV7, 435. 



r.iiiii, is cooperi Baird, Proo. Acad. Nat. Sci. Phila. vii, 1855, 334; Mam. N. Am. 1857, 301, foot-note. 



Tamias quadrimaculalus Gray, Ann. and Mag. Nat. Hist. 3d ser. xx, 1867, 435. 



Var. DORSALIS. 



Gila Chipmunk. 



Tamias dorsalis Baird, Proc. Acad. Nat. Sci. Phila. vii, 1855, 332; Mam. N. Am. 1857, 300, pi. xlvi, animal ; 



U. S. and Mex. Bound. Survey, ii, pt. ii, 1859, 37. — Gray, Ann. and Mag. Nat. Hist. 3d ser. 



xx, 1867, 436.— Coues, Amer. Nat. i, 1867, 358 ; Proc. Acad. Nat. Sci. Phila. 1867, 134 (Arizona). 

 Tamias quadrivittaius var. dorsalis Aixen, Proc. Bost. Soc. Nat. Hist, xvi, 1874, 290.— Coues & Yarrow, 



Wheeler's Expl. and Surv. West of 100th Merid. v, Zool. 1876, 119. 



Var. BOREALIS. 

 Northern Chipmunk. 



Varietal chars. — Size of var. townsendi or smaller. Length of head 

 and body 5.50 ; of tail to end of vertebra? 3.92 ; to end of hairs 5.00 {Pallas). 

 Above, pale yellowish-gray, with a faint wash of brownish-fulvous on the 

 sides ; back with five lines of black, alternating with four lines of yellowish- 

 gray, all of nearly equal breadth and rather sharply defined ; beneath, gray- 

 ish-white ; sides of the head with two narrow lines of grayish-white extending 

 from the nose to the ear, separated by a brownish-black stripe; a narrow 

 blackish-brown stripe above the light ones, and another below them. The 

 middle black stripe of the back extends from the occiput to the base of the 

 tail. The next on either side begins at the front edge of the shoulder and 

 extends also nearly or quite to the base of the tail; the outer on either side 

 extends only from the posterior edge of the shoulder to the hip. The black 

 stripes are either not at all or only very faintly edged with pale rufous. The 

 tail above is blackish, with the hairs pale yellowish at base, crossed by a sub- 

 terminal bar of black and tipped with white. The lower surface of the tail 

 is pale yellowish centrally, with a subterminal border of black edged with 

 yellowish-white. 



Habitat. — Northeastern Europe, Northern Asia, and Northwestern North 



