NORTH AMERICAN RECENT MAMMALS. 307 



t*Reithrodontomys albescens albescens Gary, 



1903. Reithrodontomys albescens Gary, Proc. Biol. Soc. Wash- 

 ington, vol. 16, p. 53. May 6, 1903. 



Type Locality. — Eighteen miles northwest of Kennedy, Gherry 

 Gounty, Nebraska. 



Range. — Sand-hill region of Nebraska and western South 

 Dakota; west to Loveland, Golorado. 



t*Reithrodontomys albescens griseus (Bailey). 



1905. Reithrodontomys griseus Bailey, North Amer. Fauna, No. 



25, p. 106. October 24, 1905. 

 1914, Reithrodontomys albescens griseus Howell, North Amer. 



Fauna, No. 36, p. 23. June 5, 1914. 

 Type Locality.— San Antonio, Bexar Goimt}-, Texas. 

 Range. — Southern Nebraska, Kansas, Oklahoma, central and 



western Texas, and eastern New Mexico. Limits of range 



imperfectly known. 



vugalolis-gTow]) . 

 t*Reithrodontomys montanus (Baird). 



1855. Reithrodon montanus Baird, Proc. Acad. Nat. Sci. Phila- 

 delphia, p. 335. 

 1885, Ochetodon montanus True, Proc. LT. S. Nat. Mus., vol. 7 



(1884), p. 598. 1885. 

 1893. Reithrodontomys montanus Allen, Bull. ^imer. Mus. 



Nat. Hist., vol. 5, p. 80. April 28, 1893. 

 Type Locality. — Probably near the upper end of the San 



Luis Valley, Saguache Gounty, Golorado. (See Allen, Bull. 



Amer. Mus. Nat. Hist., vol. 7, p. 124, May 21, 1895.) 

 Range. — San Luis Valley, Golorado. 



t*Reithrodontomys megalotis megalotis (Baird). 



1857. Reithrodon megalotis Baird, Mamm. N. Amer., p. 451. 



1893. Reithrodontomys megalotis Allen, Bull. Amer. Mus. Nat. 

 Hist., vol. 5, p. 79. April 28, 1893. 



1895. Reithrodontomys megalotis deserti Allen, Bull. Amer. Mus. 

 Nat. Hist., vol. 7, p. 127. May 21, 1895. (Oasis Valley, Nye 

 Gounty, Nevada.) 



1903. Reithrodontomys megalotis sestinensis Allen, Bull. Amer. 

 Mus. Nat. Hist., vol. 19, p. 602. November 12, 1903. (Rio 

 Sestin, northwest Durango, Mexico.) 



Type Locality. — Between Janos, Ghihuahua, and San Luis 

 Springs, Grant Gountj", New Mexico. 



Range. — From northern Nevada and southern Idaho south 

 to Zacatecas, Mexico; occupying the greater part of Nevada, 

 Arizona, and Utah (except eastern part) ; southern New 

 Mexico ; western Texas (west of Pecos River) ; desert regions 

 of southern and northeastern Galifornia, northeastern Lower 

 Galifornia, and northern Sonora; and northeru portion of 

 Mexican table-land. 



