250 BULLETIN 12rS, UNITED STATES NATIONAL MUSEUM, 



fossor-group. 



*Thomomys fossor Allen. 



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

 vol. 5, p. 51. April 28, 1893. 



Type Locality.— Florida, La Plata County, Colorado. Alti- 

 tude, 7,200 feet. 



Range.— Mountains of western Colorado, extreme southern 

 Wyoming, northern New Mexico, eastern and southern Utah, 

 and northwestern Arizona. 



t*Thomomys bridgeri Merriam. 



1901. Thomomys bridgeri Mereiam, Proc. Biol. Soc. Washington, 



vol. 14, p. 113. July 19, 1901. 

 Type Locality. — Six miles southwest of Old Fort Bridger, 



Uinta County, W3'^oming. 

 Range. — -Southwestern Wyoming and southeastern Idaho. 



(Transition zone). 



t*Thomomys uinta Merriam. 



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

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



Type Locality. — Black's Fork, north base of Gilbert's Peak, 

 Uinta Mountains, Summit County, Utah. Altitude, 10,000 feet. 

 Range. — Western Wyoming, southeastern Idaho, and northern 

 Utah. 



t*Thomomys quadratus quadratus Merriam. 



1897. Thomomys qtiadratus Merriam, Proc. Biol. Soc. Washing- 

 ton, vol. 11, p. 214. July 15, 1897. 



Type Locality. — The Dalles, Wasco County, Oregon. 



Range. — Plains of eastern and central Oregon, northeastern 

 California, and northwestern Nevada. 



t*Thonioinys quadratus fisheri (Merriam). 



1901. Thomomys fuscus Jisheri Merklam, Proc. Biol. Soc. Wash- 

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



1915. Thomomys quadratus fisheri Bailey, North Amer. Fauna, 

 No. 39, p. 115. November 15, 1915. 



Type Locality. — Beckwith, Sierra Valley, Plumas County, 

 California. 



Range. — Northern, central, and western Nevada; west in Cali- 

 fornia to Sierra Valley and Mono Lake. 



douglasii-^ow^ . 



*Thomoniys douglasii douglasii (Richardson). 



1829. Geomys douglasii Richardson, Fauna Boreali-Americana, 

 vol. 1, p. 200. 



