SCIURIDZ—SPERMOPHILUS GRAMMURUS AND VARIETIES. 833 
GEOGRAPHICAL DISTRIBULION.—The habitat of Spermophilus grammurus 
var. grammurus extends from the parks of Central Colorado southward into 
Mexico, probably to a considerable distance beyond the boundary of the United 
States. In some portions of Colorado, as in the vicinity of Boulder, whence 
many specimens have been brought, it appears to be a common and character- 
istic species. It occurs in Western Texas, but further north does not appear 
to occur much to the eastward of the eastern base of the Rocky Mountains. 
It ranges thence westward to, and probably throughout, the Great Basin, at all 
favorable localities. 'There are specimens in the collection from Ogden and 
Provo, Utah, and Virginia City, Nev. Var. douglassi ranges from Northern 
California to Fort Dalles and Klamath Lake, Oreg. In Northern California, 
it gradually passes into var. beecheyi, which ranges thence southward through- 
out Southern California, and probably further southward. The most southern 
points represented in the collection are Fort Tejon and San Diego. Speci- 
mens referable to beecheyi have been collected by Mr. H. W. Henshaw on the 
eastern slope of the Sierra Nevadas. The species grammurus hence ranges 
from the eastern base of the Rocky Mountains to the Pacific coast, and from 
beyond the Mexican boundary northward to Central Colorado, Northern Utah, 
and Oregon.* 
Vépaule jusqu’a la chute des reins, avant la naissance de la queue; les parties inférieures, les flancs, le 
dedans des membres sont blanchftres, mais tous les poils de ces parties sont 4 moitié noirs et termines 
de blane seulement. 
“Les soies de cet écureuil sont fines, peu abondantes et noires; le nu des tarses est noirdtre; les 
ongles faibles et acérés sont bruns; la queue parfaitement aplatie et A poils distiques, est colorée en 
dessus de noir et de blanc mélangé au milieu, et blane sur les bords; en dessous elle est blanche, bordée 
et terminée de noir, puis frangée de poils blancs. Cette coloration est due 4 ce que chaque poil est blane 
dla base, noir au milieu, et blanc au sommet. 
“Ce petit écureuil doit, 4 la faiblesse de ses ongles, vivre uniquement sur les arbres. Nous n’avons 
pu vérifier son systéme dentaire parce que le seul individu soumis 4 notre étude appartenait 4 un musée, 
et provenait de la Californie, mais sans indication de localité précise.”—(‘‘ Description de Mammiferes et 
@ Oiseaux récemment découverts, précédée dun Tableau sur les Races Humaines, par M. Lesson, Paris, 1847”, 
pp. 143-145.) 
*This species is apparently more or less active at southern localities throughout the winter. 
Mr. T. G. Cary, who formerly resided many years in California, and knows the species well, assures me 
that about San Mateo they were to be met with abundantly at all seasons, apparently spending no por- 
tion of the year ina state of hibernation. This is confirmed by the observations of Dr. Coues, who 
enjoyed excellent opportunities of studying its habits in Southern California, and who found it as active 
as ever during the latter part of November, 1865, in the vicinity of San Pedro. Dr. J. G. Cooper also 
states that on the Los Angeles Plains, in the southern part of the State, they “do not hibernate aS 
but may be seen there in winter actively running about or sitting erect near their burrows.—( American 
Naturalist, vol. iii, p. 182.) 
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