free ebooks
A New Pocket Mouse (Genus Perognathus) from Kansas

A New Pocket Mouse (Genus Perognathus) from Kansas

BY

E. LENDELL COCKRUM

University of Kansas Publications Museum of Natural History

Volume 5, No. 11, pp. 203-206 December 15, 1951

University of Kansas LAWRENCE 1951

UNIVERSITY OF KANSAS PUBLICATIONS, MUSEUM OF NATURAL HISTORY

Editors: E. Raymond Hall, Chairman, A. Byron Leonard, Edward H. Taylor, Robert W. Wilson

Volume 5, No. 11, pp. 203-206 December 15, 1951

UNIVERSITY OF KANSAS Lawrence, Kansas

PRINTED BY FERD VOILAND, JR., STATE PRINTER TOPEKA, KANSAS 1951

23-8186

A New Pocket Mouse (Genus Perognathus) from Kansas

BY

E. LENDELL COCKRUM

In studying the kinds of mammals known from Kansas, I had occasion to examine a series of _Perognathus flavus_ from the western part of the state. Comparisons of these specimens with topotypes of named subspecies revealed that the specimens from Kansas belong to a heretofore undescribed subspecies which ranges through western Nebraska, eastern Colorado, western Kansas, and western Oklahoma. This subspecies is named and described as follows.

=Perognathus flavus bunkeri=, new subspecies

_Type._--Female, adult, skin and skull; No. 11716, Univ. Kansas Mus. Nat. Hist.; Conard Farm, 1 mi. E Coolidge, Hamilton County, Kansas; 1 July 1936; obtained by F. Parks and C. W. Hibbard, original No. 894 of Hibbard.

_Diagnosis._--Size large (see measurements). Color light, upper parts between Pinkish Buff and Cinnamon-Buff (capitalized color terms after Ridgway, Color Standards and Color Nomenclature, Washington, D. C., 1912), sparsely mixed with black hairs; the effect at a distance of eight feet, is between Clay Color and Tawny-Olive; lateral line between Pinkish Buff and Cinnamon-Buff; postauricular spots near Pinkish Buff; small subauricular spots white; underparts white. Skull of medium size (see measurements); frontonasal and mastoidal regions much enlarged; interparietal transversely narrow.

_Comparisons._--From topotypes of _P. f. flavus_ from El Paso, El Paso County, Texas, _P. f. bunkeri_ differs as follows: Averaging larger in all cranial measurements taken except in occipitonasal length, which is approximately the same, and in interparietal width, which is less; color more buffy, with fewer black hairs dorsally. From topotypes of _P. f. piperi_ from 23 miles southwest of Newcastle, Weston County, Wyoming, _P. f. bunkeri_ differs as follows: Smaller in frontonasal length, mastoidal breadth, and length of auditory bulla; color more buffy, with fewer black hairs dorsally. From topotypes of _P. f. sanluisi_ from nine miles east of Center, Alamosa County, Colorado, _P. f. bunkeri_ differs as follows: Averaging larger in all cranial measurements taken except interparietal width, which is smaller; color lighter and more buffy.

_Remarks._--This is a brightly colored subspecies of _Perognathus flavus_, with less black dorsally than any adjacent one. The lateral line is well marked. Three young adult specimens taken from Wakeeney, Trego County, Kansas, are much brighter than other specimens from Kansas. The five specimens from Greeley, Weld County, Colorado, are much darker dorsally, like _P. f. piperi_, but are referable to _P. f. bunkeri_ on the basis of cranial characters.


eBook Search
Social Sharing
Share Button
About us

freefictionbooks.org is a collection of free ebooks that can be read online. Ebooks are split into pages for easier reading and better bookmarking.

We have more than 35,000 free books in our collection and are adding new books daily.

We invite you to link to us, so as many people as possible can enjoy this wonderful free website.

© 2010-2013 freefictionbooks.org - All Rights Reserved.

Terms of Use | Privacy Policy | Contact Us