270 BULLETIN 79, UNITED STATES NATIONAL MUSEUM. 



t*Perognathus nelsoni nelsoni Merriam. 



1894. Perognatlius {Chsetodi'pus) nelsoni Merriam, Proc. Acad. 

 Nat. Sci., Philadelphia, p. 266. September 27, 1894. 



Type Locality. — Hacienda La Parada, about 25 miles north- 

 west of the city of San Luis Potosi, State of San Luis Potosi, 

 Mexico. 



Range. — ^Upper and lower Sonoran zone of central Mexico, cov- 

 ering the table-land from Inde, Durango, south to Lagos, 

 Jalisco, and east to Jaumave, Tamaulipas. 



t*Perognathus nelsoni canescens (Merriam). 



1894. Perognatlius (Chsetodipus) intermedius canescens Merriam, 



Proc. Acad. Nat. Sci. Philadelphia, p. 267. September 27, 



1894. 

 1900. Perognxithus nelsoni canescens Osgood, North Amer. 



Fauna, No. 18, p. 54. September 20, 1900. 

 Type Locality. — Jaral, State of Coahuila, Mexico. 

 Range. — Known only from the type locahty. 



t*Perognathus goldmani Osgood. 



1900. Perognatlius goldmani Osgood, North Amer. Fauna, No. 



18, p. 54. September 20, 1900. 

 Type Locality. — Sinaloa, State of Sinaloa, Mexico. 

 Range. — Coast plains of northern Sinaloa and southern Sonora, 

 Mexico. 



t*Perognathus artus Osgood. 



1900. Perognatlius artus Osgood, North Amer. Fauna, No. 18, 

 p. 55. September 20, 1900. 



Type Locality. — Batopilas, State of Chihuahua, Mexico. 

 Range. — Known only from a few scattered localities in western 

 Mexico. 



t*Perognathus fallax fallax Merriam. 



1889. Perognatlius fallax Merriam, North Amer. Fauna, No. 1, 

 p. 19. October 25, 1889. 



Type Locality. — ^Reche Canyon, 3 miles southeast of Colton, 

 San Bernardino County, California. 



Range. — Extreme southwestern CaUfornia, occupying the region 

 west of the San Bernardino and San Jacinto Ranges and ex- 

 tending south into northern Lower California. 



t*Perognathus fallax pallidus Mearns. 



1901. Perognatlius fallax pallidus Mearns, Proc. Biol. Soc. 

 Washington, vol. 14, p. 135. August 9, 1901. 



Type Locality. — Mountain Spring, half way up the east slope 

 of the Coast Range Mountains, on the Mexican boundary Une, 

 San Diego County, California. 



