NORTH AMERICAN RECENT MAMMALS. 239 



*Thomomys bottae pallescens Rlioads. 



1895. Thomomys lottse, pallescens Rhoads, Proc. Acad. Nat. Sci. 



Philadelphia, p. 36. February 21, 1895. 

 Type Locality. — Grapelands, San Bernardino Valley, San 



Bernardino County, California. 

 Range. — San Bernardino Valley, California, north to San 



Fernando. 



*Thomomys bottae infrapallidus (Grinnell). 



1914. Thomomys infrapallidus Grinnell, Univ. Calif. Publ. 

 Zool., vol. 12, p. 314. November 21, 1914. 



1915. Thomomys hottse infrapallidus Bailey, North Amer. Fauna, 

 No. 39, p. 55. November 15, 1915. 



Type Locality. — Seven miles southeast of Simmler, Carrizo 



Plain, San Luis Obispo County, California. 

 Range. — Carrizo Plain, California. 



♦Thomomys bottae nigricans (Rhoads). 



1895. Thomomys fulvus nigricans Rhoads, Proc. Acad. Nat. Sci. 



Philadelphia, p. 36. February 21, 1895. 

 1903. Tliomomys aphrastus Elliot, Field Columb. Mus., publ. 79» 



zool. ser., vol. 3, p. 219. June, 1903. San Tomas, Lower 



California, Mexico, 18 miles south of Ensenada, at 50-100 feet 



altitude. 

 1915. Thomomys hottse nigricans Bailey, North Amer. Fauna, 



No. 39, p. 56. November 15, 1915. 

 Type Locality. — Witch Creek, 7 miles west of Julian, San Diego 



County, California. Altitude, 2,753 feet. 

 Range. — Southwestern California and northern Lower California, 



from the San Jacinto Mountains, California, south to Ubar, 



Lower California. 



t*Thomomys bottae pascalis (Merriam). 



1901. Thomomys angularis pascalis Merriam, Proc. Biol. Soc- 



Washington, vol. 14, p. 111. July 19, 1901. 

 1915. Thomomys hottse pascalis Bailey, North Amer. Fauna, 



No. 39, p. 54. November 15, 1915. 

 Type Locality. — Fresno, San Joaquin Valley, Fresno County, 



California. 

 Range. — -East side of wSan Joaquin Valley, from Stockton south 



to San Emigdio Canyon and Cuyama Valley. 



*Thomomys bottae putfrtae (Grinnell). 



1914. Thomomys nigricans puertx Grinnell, Univ. Calif. Publ. 

 Zool., vol. 12, p. 315. November 21, 1914. 



