A New Chipmunk (Genus Eutamias) from the Black Hills

A New Chipmunk (Genus Eutamias) from the Black Hills

Study of the chipmunks from the eastern Rocky Mountains and Great Plains reveals that the chipmunks from northeastern Wyoming and from South Dakota which Howell (N. Amer. Fauna, 52:55, November 30, 1929) referred to Eutamias minimus borealis actually belong to a heretofore unnamed subspecies which may be named and described as follows: Type.Female, adult, skull and skin, No. 20050 Mus. Nat. Hist., Univ. Kansas; from 3 mi. NW Sundance, 5900 ft., Crook County, Wyoming; obtained on July 4, 1947, by H. W. Setzer; original No. 1692. Diagnosis.Size large (see measurements); general tone of upper parts drab; sides Ochraceous Buff (capitalized terms are of Ridgway, Color Standards and Color Nomenclature, Washington, D. C., 1912); lateral stripes Fuscus Black washed with Ochraceous Tawny; ventral side of tail near (14' h) Ochraceous Orange and fringed with black. Comparisons.From Eutamias minimus pallidus (specimens from Buffalo in Johnson County, Ivy Creek, Rockypoint, Middle Butte, and South Butte in Campbell County, all in Wyoming, and Harrison, Sioux County, Nebraska), the subspecies to the southward, westward, and northward, E. m. silvaticus differs in: General tone of upper parts markedly darker, more reddish and less grayish; dorsal stripes darker; crown markedly darker. External measurements, and measurements and characters of the skull of the two subspecies, do not differ significantly. Unless otherwise specified all comparative material is in the Museum of Natural History of the University of Kansas. ......Buy Now (To Read More)

Product details

Ebook Number: 30999
Author: White, John A.
Release Date: Jan 17, 2010
Format: eBook
Language: English