. Monographs of North American rodentia [microform]. Rodentia; Paleontology; Rongeurs; Paléontologie. â 796 MONOGRAPHS OF NOKTU AMERICAN RODESTIA. stono and adjoining region, and of the arid districts of Wyoming, Soutliern Idalio, Utati, Nevada, Arizona, and New Mexico. Reaches an extreme phase of specialization in the Yellowstone region in respect to both pallor and smallness of size. Var. T0WN8ENDI. Townsend's Chipmunk. Variktal chars.âSize large, equalling that of Siberian specimens of var. horealis. Length of head and body ; of tail to end of vertebrae ; to end of hairs about
. Monographs of North American rodentia [microform]. Rodentia; Paleontology; Rongeurs; Paléontologie. â 796 MONOGRAPHS OF NOKTU AMERICAN RODESTIA. stono and adjoining region, and of the arid districts of Wyoming, Soutliern Idalio, Utati, Nevada, Arizona, and New Mexico. Reaches an extreme phase of specialization in the Yellowstone region in respect to both pallor and smallness of size. Var. T0WN8ENDI. Townsend's Chipmunk. Variktal chars.âSize large, equalling that of Siberian specimens of var. horealis. Length of head and body ; of tail to end of vertebrae ; to end of hairs about General color above nearly uniform dull rusty- brown, with usually five (sometimes only three) distinct longitudinal stripes of black. Intervals between the dark stripes generally, but not always, some- what lighter than the general color; sometimes much lighter (yeliowisa jray); occasiondly the outer light stripes are clear grayish-white. Markings on the head the same in number, size, and position as in the preceding, but the light ones are more rufous and the dark ones-blacker. The tail-hairs are deep rust-red at base, with a subterminal bar of black and clear grayish-white tips. Habitat.âPacific coast, from Northern California to British Columbia; at the southward and eastward' passing into /ar. quadrivittatus and at the northward into var. borealis. Most specialized near the mouth of the Colum- bia River, where it attains the largest size Und darkest tints. Var. DOR8ALI8. Gila Chipmunk. Varietal chabs.âOf medium size for the species, being intermediate in this respect between the extreme phases of vars. townaendi and quadrivittatus. General color above ashen-gray, varied slightly with yellowish-brown ; sides pale dull yellowish. Dorsal surface with a single blackish stripe along the middle of the back, extending from the occiput to the base of tlie tail. The other dorsal stripes are nearly or quite obsolete, though generally traceable; the outer white stripes ge
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Keywords: ., bookcentury1800, bookdecade1870, bookpub, booksubjectpaleontology
