Vol. Ill] GRINNELL— MAMMALS OF CALIFORNIA ZZi 



Perognathus penicillatus penicillatus Woodhouse 

 Colorado Desert Pocket Mouse 



Original description — Perognathus penicillatus Woodhouse, 

 Proc. Acad. Nat. Sci. Phila., 6, December, 1852, pp. 200, 201. 



Type locality — Somewhere near San Francisco Mountain, 

 Arizona, possibly Little Colorado Desert (see Osgood, N. 

 Amer. Fauna, 18, 1900, p. 45). 



Synonym — Perognathus penicillatus angustirostris Osgood, 

 supra cit., p. 47 (type from Carrizo Creek, western edge of 

 Colorado Desert, Imperial County, California). 



Range — Lower Sonoran zone on Colorado Desert, west to 

 La Puerta, eastern San Diego County, northwest to Cabezon, 

 Riverside County, and north along the Colorado River bottom 

 to Needles (Mus. Vert. Zool.). 



Perognathus penicillatus Stephens! Merriam 

 Stephens Pocket Mouse 



Original description — Perognathus stephensi Merriam, Proc. 

 Acad. Nat. Sci. Phila., September 27, 1894, p. 267. 



Type locality — Mesquite Valley, northwest arm of Death 

 Valley, Inyo County, California. 



Range — Lower Sonoran zone on the Mohave Desert : Death 

 Valley, Inyo County, south to Victorville, San Bernardino 

 County (Elliot, Field Col. Mus., zool. ser., 3, 1904, p. 309; 

 Mus. Vert. Zool.). 



Perognathus fallax fallax ]\Ierriam 

 San Diego Short-eared Pocket Mouse 



Original description — Perognathus fallax Merriam, N. 

 Amer. Fauna, 1, October, 1889, pp. 19, 20. 



Type locality — Reche Canyon, 3 miles southeast of Colton, 

 San Bernardino County, California (fide Osgood, N. Amer. 

 Fauna, 18, 1900, p. 55). 



Range — Lower Sonoran zone in southern part of the San 

 Diegan district, from the Mexican line northwest at least to 

 the vicinity of Riverside (Mus. Vert. Zool.). 



