A New Pocket Mouse (Genus Perognathus)
from Kansas

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.