NORTH AMERICAN LAND MAMMALS. 261 



*Perognathus merriami merriami Allen. 



1892. Perognathus merriami Allen, Bull. Amer. Miis. Nat. 

 Hist., vol. 4, p. 45. March 25, 1892. 



1896. Perognathus mearnsi Allen, Bull. Amer. Mus. Nat. Hist., 

 vol. 8, p. 237. November 21, 1896. (Watson's Ranch, 15 

 miles southwest of San Antonio, Bexar County, Texas.) 



Type Locality. — Brownsville, Cameron County, Texas. 



Range. — Subtropical region of southern Texas and northeastern 

 Mexico, and knver Sonoran of central Texas. The known 

 range extends from Alta Mira, Tamauhpas, northward to 

 Washburn, Texas, and from this point southwestward to the 

 vicinity of Roswell, New Mexico; on the east it reaches San 

 Antonio, and on the west follows up the Rio Grande as far as 

 Comstock. 



t*Perognathus merriami gilvus Osgood. 



1900. Perognathus merriami gilvus Osgood, North Amer. Fauna, 



No. 18, p. 22. September 20, 1900. 

 Type Locality. — Eddy, Eddy County, New Mexico. 

 Range. — Western Texas and southeastern New Mexico. Lower 

 Sonoran zone. 



t*Perognathus flavus flavus Baird. 



1885. Perognathus flavus Baird, Proc. Acad. Nat. Sci. Phila- 

 delphia, vd. 7, p. 332. 



1885. Oricetodipus 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 bimaculatus (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. 



