242 BULLETIN 19, UNITED STATES NATIONAL MUSEUM. 



t*Thomomys talpoides agrestis Merriam. 



1908. Thomomys 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. Thomomys 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 townsendii 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. — "Rocky Mountains;" probably southwestern 



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



p. 61, April 28, 1893.) 



t*Thomomys uin-ta 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, val. 1, p. 202. 



1906. Thomomys umhrinus 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. iSee Bailey, 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. Diolostoina 

 hulhivorum Richardson. 



*Thomomys bulbivorus (Richardson). 



1829. Diplostoma hulhivorum Richardson, Fauna Boreali- 



Americana, vol. 1, p. 206. 

 1857. Thomomys hulhivorus Baird, ]\Lainm. N. Amer., p. 389. 

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



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

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



