308 perognathus. 



White-eared Pocket Mouse. 



Type locality. Squirrel Inn, San Bernardino Mountains, San Ber- 

 nardino County, California. 



Geogr. Distr. Kjiown only from the type locality. 



761. Pero^^nathus lordi (Grav). 



Abromys (sic) lordi Gray, Proc. Zool. Soc, 1868, p. 202. 



Perognathus lordi Elliot, Syn. N. Am. Mamm., F. C. M. Pub., 11. 

 1901. p. 250. Zool. Ser. 

 Northwest Pocket Mouse. 



Type locality. Southern British Columbia, Canada. 



Geogr. Distr. Southern British Coltmabia to the plains of the 

 Columbia River, Washington. 



a. Perognaihus lordi cohnnbianus (Merriam). 



Perognathus columbianus Merr., Proc. Acad. Nat. Scien. Phil., 



1894, p. 263. 

 Perognaihus lordi columbianus Elliot, Syn. N. Am. Mamm., F. C. M. 

 Pub., II, 1901, p. 250. Zool. Ser. 

 CoLUMBi.\N- Pocket Mouse. 



Type locality. Pasco, FrankHn County, Washington. 

 Geogr. Distr. Known only from the type locality. 



762. Perognathus formosus Merriam. 



Perognaihus formosus Merr., N. Am. Faun., No. i, 1889, p. 17, 

 Elliot, Syn, N. Am. Mamm., F. C. M. Pub., 11, 1901, p. 250. 

 Zool. Ser. 

 Long-tailed Pocket Mouse. 



Type locality. St. George, Washington County, Utah. 

 Geogr. Distr. Southwestern Utah, southern Nevada, and adja- 

 cent portions of CaUfomia as far south as Copper City. 



763. Perognathus mesembrinus Elliot. 



Perognathus mesembrinus Elliot, Pub. Field Columb. Mus., iii, 

 1903, p. 251. Zool. Ser. 

 Southern Pocket Mouse. 



Type locality. Palm Springs, Colorado Desert, Riverside County, 

 Cahfomia. 



Geogr. Distr. Southern California, probably into Lower Cahfomia, 

 Mexico. 



Genl. Char. Color pale ; tail hairy, pencil large, bushy ; size mediimi. 



Color. Upper parts mixed drab gray and buif; no lateral line; 

 thighs Uke the back; hps, entire under parts, fore legs, fore and hind 

 feet white; tail above with pencil brownish drab, beneath whitish; 

 ear dark brown ; bases covered with tufts of drab gray. 



