NORTH AMERICAN RECENT MAMMALS. 393 



*Netoma cinerea nipicola — Continued. 



1910. Neotoma cinerea rupicola Goldman, North Amer. Fauna, 



No. 31, p. 107. October 19, 1910. 

 Type Locality. — Corral Draw, Pine River Indian Reservation, 



southeastern base of Black Hills, South Dakota. Altitude, 



about 3,700 feet. 

 Range. — Big Bad Lands region from southwestern South 



Dakota, through southeastern W5'oming and western Nebraska 



to northeastern Colorado. Upper Sonoran zone. 



Genus HODOMYS Merriam. 



1894. Eodomys Merriam, Proc. Acad. Nat. Sci. Philadelphia, 

 p. 232. September 24, 1894. Type, iVco^oTjmaZZeni Merriam. 



t*Hodomys alleni (Merriam). 



1892. Neotoma alleni Merriam, Proc. Biol. Soc. Washington, 

 vol. 7, p. 168. September 29, 1892. 



1894. Hodomys alleni Merriam, Proc. Acad. Nat. Sci. Phila- 

 delphia, p. 235. September 24, 1894. 



Type Locality. — Manzanillo, Colima, Mexico. 



t*Hodomys vetulus Merriam. 



1894. Hodomys vetulus Merriam, Proc. Acad. Nat. Sci. Phila- 

 delphia, p. 236. September 24, 1894. 

 Type Locality. — Tehuacan, Puebla, Mexico. 



Genus XENOMYS Merriam. 



1892. Xenomys Merriam, Proc. Biol. Soc. Washington, vol. 7. 

 p. 160. September 29, 1892. Type, Xenomys nelsoni Mer- 

 riam. 



t*Xenomys nelsoni Merriam. 



1892. Xenom,ys nelsoni Merriam, Proc. Biol. Soc. Washington, 



vol. 7, p. 161. September 29, 1892. 

 Type Locality. — Hacienda Magdalena, between the city of 

 Colima and Manzanillo, Colima, Mexico. 



Subfamily Microtinae.^^ (Voles and lemmings.) 

 Group LEMMI. 



Genus SYNAPTOMYS Baird.^^ 

 (Bog-lemmings.) 



1857. Synaptomys Baird, Mamm. N. Amer., p. 558. Type, 

 Synaptomys cnoveri Baird. 



'■' Genera and subgenera revised by Miller, North Amer. Fauna, No. 12, July 23, 1896. 

 w Revised by Merriam, Proc. Biol. Soc. Washington, vol. 10, pp. 55-64, Mar. 19, 1896, but so many species 

 have subsequently been described that the forms are here entered alphabetically. 



