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 ”

“ 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. ”

“ 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. ”