274 BULLETIN 128, UNITED STATES NATIONAL MUSEUM. 



t*Perognathus flavus flavus Baird. 



1855. Perognatus [sic] flavus Baird, Proc. Acad. Nat. Sci. Phila- 

 delphia, vol. 7, p. 332. 



1885. Cricetodipus flavus True, Proc. U. S. Nat. Mus., vol. 7 

 (1884), p. 599. 1885. (Part.) 



Type Locality. — El Paso, El Paso County, Texas. 



Range. — Upper and lower Sonoran zones from northeastern 

 Colorado and western Nebraska to northern Mexico, extending 

 westward into central Arizona and eastward to western Texas. 

 In central Arizona its range meets that of the subspecies 

 himaculatus and in north-central Mexico it merges with that of 

 mexicanus. 



t*Perognathus flavus piperi Goldman. 



1917. Perognatlius flavus piperi Goldman, Proc, Biol. Soc. 



Washington, vol. 30, p. 148. July 27, 1917. 

 Type Locality.^ — -Twenty-three miles southwest of Newcastle, 



Weston County, Wyoming. 

 Range. — Probably ranging at low elevations throughout eastern 



Wyoming and western South Dakota. (Goldman.) 



t*Perognathus flavus himaculatus (Merriam). 



1889. Perognathus himaculatus Merriam, North Amer. Fauna, 

 No. 1, p. 12. October 25, 1889. 



1900. Perognathus flavus himaculatus Osgood, North Amer. 



Fauna, No. 18, p. 24. September 20, 1900. 

 Type Locality.— Fort Whipple, Yavapai County, Arizona. 

 Range. — Central and northeastern Arizona and southeastern 



Utah. 



t*Perognathus flavus fuliginosus (Merriam). 



1890. Perognathus fuliginosus Merriam, North Amer. Fauna, 

 No. 3, p. 74. September 11, 1890. 



1900. Perognathus flavus fuliginosus Osgood, North Amer. 

 Fauna, No. 18, p. 25. September 20, 1900. 



Type Locality. — -Cedar belt northeast of San Franscico Moun- 

 tain, Coconino County, Arizona, Altitude, 7,000 feet. 



Range. — ^Lava beds in the vicinity of San Francisco Mountain, 

 Arizona. 



t*Perognathus flavus mexicanus Merriam. 



1894. Perognathus flavus mexicanus Merriam, Proc. Acad. Nat. 



Sci. Philadelphia, p. 265. September 27, 1894. 

 Type Locality. — Tlalpam, Federal District, Mexico. 

 Range.— Upper and lower Sonoran zones of the southern half 



of the table-land of Mexico. 



