242 BULLETIlSr 79, UNITED STATES NATIONAL MUSEUM. 



t*Thomomys talpoides agrestis Merriam. 



1908. TTiomomys taljjoides agrestis Merriam, Proc. Biol. Soc. 



Washington, vol. 21, p. 144. June 9, 1908. 

 Type Locality. — Medano Ranch, San Lius Valley, Colorado. 



*Thomomys toltecus Allen. 



1893. Tliomomys toMcus Allen, Bull. Amer. Mus. Nat. Hist., 



vol. 5, p. 52. April 28, 1893. 

 Type Locality. — Juarez, State of Chihuahua, Mexico. 



Thomomys townsendii (Bachman). 



1839. Geomys totvnsendii Bachman, Journ. Acad. Nat. Sci. 



Philadelphia, vol., 8, p. 105. 

 1893. Thomomys townsendii Allen, Bull. Amer. Mus. Nat. Hist., 



vol. 5, p. 61. April 28, 1893. 

 Type Locality. — "Rock}^ Mountains;" probably southwestern 



Wyoming. (See Allen, Bull. Amer. Mus. Nat. Hist., vol. 5, 



p. 61, April 28, 1893.) 



t*Thomomys uinta Merriam. 



1901. Thomomys uinta Merriam, Proc. Biol. Soc. Washington, 



vol. 14, p. 112. July 19, 1901. 

 Type Locality. — Uinta Mountains. Summit County, Utah. 

 Altitude, 10,000 feet. 



*Thomomys umbrinus (Richardson). 



1829. Geomys umbrinus Richardson, Fauna Boreali-Ameri- 

 cana, voi. 1, p. 202. 



1906. Thomomys umbrinus Bailey, Proc. Biol. Soc. Washing- 

 ton, vol. 19, p. 3, January 29, 1906. 



Type Locality. — Southern Mexico; probably the vicinity of 

 Boca del Monte, Vera Cruz, ^ee Baile}^, Proc. Biol. Soc. 

 Washington, vol. 19, pp. 3-6, January 29 1906.) 



Subgenus Megascapheus Elliot 



1903. Megascapheus Elliot, Field Columb. Mus., publ. 76, 

 zool. ser., vol. 3, p. 190. May, 1903. Type. Divlostoma 

 huTbivorum Richardson. 



*Thomomys bulbivorus (Richardson). 



1829. Diplostoma bulbivorum Richardson, Fauna Boreali- 



Americana, vol. 1, p. 206. 

 1857. Thomomys bulbivorus Baird, Mamm. N. Amer., p. 389. 

 1893. Thomomys bulbivorus Miller, Bull. Amer. Mus. Nat. Hist., 



vol. 5, p. 57. April 28, 1893. 

 Type Locality. — Banks of the Columbia River, Oregon. 



