SPERMOPHILUS. 83 



99. lateralis. (Sc/i/rus), Say, Long's Exped. Rocky Mts., 1S22, 11, 



p. 46. 



T)'/e locality. Arkansas River, Colorado, near Canon City. 



Geogr. Distr. Colorado, Utah (Uintah Mts.), and Arizona, 

 (White and San Francisco Mts.). 



Genl. Char. Inner black stripe smaller than outer; back griz- 

 zled brown. 



Color. Above grizzled yellowish brown, gray and black; top of 

 head chestnut; rump and hind part of thighs chestnut brown, mottled 

 with black and yellow; two black stripes enclosing a white one on 

 each side of body; under parts generally pale brownish gray. Tail 

 below bright chestnut, bordered with black and fringed with yellow, 

 above blackish edged with yellow. 



Mt-asiiremcnts. Total length, 300; tail vertebra', 93: hind part, 

 43; ear 29. 



a.—saturatus. (laz/itas). Rhoads, Proc. Acad. Nat. Scien. Phil., 

 1895, p. 43. 



T)/>e locality. Lake Kichelos, Kittitas county, Washington. 



Geogr. Distr. Central Washington, limits of range unknown. 



Genl. Char. Size large; tail very long, colors dark. 



Color. Head, sides of neck and fore legs chestnut shaded with 

 black ; upper parts, flanks and hind legs, grizzled rusty black. Dark 

 stripes on back black, light stripe white ; throat, breast, sides of belly 

 and thighs rusty ; chest and belly grizzled black ; feet pale rusty. 

 Tail above like back on basal third, rest margined with a black band 

 broadening at tip ; tips of hairs rusty, beneath reddish yellow border- 

 ed with black. 



Measurements. Total length, 317; tail vertebrje. 114: hind 

 foot, 46. 



100. cinerascens. {Tamias). Merr., N. Am. Faun., No. 4, i8go, p. 20. 

 Type locality. Helena, Montana. 



Geogr. Distr. Montana, Idaho and northward into Alberta, 

 British America. 



Genl. Char. Inner black stripe smaller than outer : general color 

 grizzled ash gray. 



Color. Above clear ash gray grizzled with black ; head and neck 

 to shoulders chestnut ; black and white stripes both broad and long ; 

 outside of thighs reddish brown ; under parts yellowish white, dusky 

 bases of hairs perceptible. Tail above mixed black and gray fringed 

 with yellowish ; below grayish yellow bordered with black. 



Measurements. Total length, 322 : tail vertebra-, 108 ; hind 

 foot, 44. 



