NORTH AMERICAN LAND MAMMALS. 269 



*Perognathus helleri Elliot. 



1903. Perognathus helleri Elliot, Field Columb. Mus., piibl. 74, 



zool. ser., vol. 3, p. 166. April, 1903. 

 Type Locality. — San Quintin, Lower California, Mexico. 



t*Perognathus stephensi Mcrriam. 



1894. Perognathus {Chxtodipus) stephensi Merriam, Proc. Acad. 



Nat. Sci. Philadelphia, p. 267. September 27, 1894. 

 Type Locality. — Mesquite Valley, northwest arm of Death 



Valley, Inyo County, California. 

 Range. — Known only from the type locality. 



t*Perognathus arenarius Merriam. 



1894. Perognathus arenarius Merriam, Proc. California Acad. 



Sci., ser. 2, vol. 4, p. 461. September 25, 1894. 

 Type Locality. — San Jorge, near Comondu, Lower California, 



Mexico. 

 Range. — Known only from the type locality. 



*Perognathus pericalles Elliot. 



1903. Perognathus pericalles Elliot, Field Columb. Mus., publ. 



87, zool. ser., vol. 3, p. 252. December, 1903. 

 Type Locality.— Keeler, Owens Lake, Inyo County, California. 



*Perognathus pemix pemix Allen. 



1898. Perognathus pemix Allen, Bull. Amer. Mus. Nat. Hist., 



vol. 10, p. 149. April 12, 1898. 

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

 Range. — Coast of western Mexico in the States of Sinaloa and 

 Jalisco. 



t*Perognathus pernix rostratus Osgood. 



1900. Perognathus pernix rostratus Osgood, North Amer. Fauna, 



No. 18, p. 51. September 20, 1900. 

 Type Locality. — Camoa, Rio Mayo, State of Sonora, i\lcxico. 

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



Mexico. 



t*Perognathus intermedius Merriam. 



1889. Perognathus intermedius Merriam, North Amer. Fauna, 

 No. 1, p. 18. October 25, 1889. 

 tl889. Perognathus ohscurus Merriam, North Amer. Fauna, No. 1, 

 p. 20. October 25, 1889. (Camp Apache, Grant County, New 

 Mexico.) 

 Type Locality. — Mud Spring, Mohave County, Arizona. 

 Range. — Known from several scattered localities in the Sonoran 

 zone of Arizona, New Mexico, and northern Mexico. 



