MILLER AND REHN : NORTH AMERICAN MAMMALS. 145 



* Thomomys clusius Coues. 



1875. Thomomys clusius COUES, Proc. acad. nat. sci. Phila., 

 p. 138. June 15, 1875. 



1885. Thomomys clusius TRUE, Proc. U. S. nat. mus., vn 

 (1884), p. 598. 1885. 



TYPE LOCALITY. Bridger Pass, Sweetwater County, Wyo- 

 ming. 



Thomomys clusius fuscus Men-lam. 



1891. Thomomys clusius fuscus MERRIAM, North Amer. 



fauna, no. 5, p. 70. July 30, 1891. 

 TYPE LOCALITY. Mountains at head of Big Lost River, 



Ouster County, Idaho. 



Regarded by Allen (Bull. Amer. mus. nat. hist., v, p. 63, April 

 28, 1893) as a form of T. douglasii. 



Thomomys douglasii (Richardson). 



1829. G-eomys douglasii RICHARDSON, Fauna Boreali- Ameri- 

 cana, i, p. 200. 



1893. Thomomys douglasii ALLEN, Bull. Amer. mus. nat. 

 hist., v, p. 66. April 28, 1893. 



TYPE LOCALITY. Near the mouth of the Columbia River, 

 Oregon. 



Thomomys douglasii yelmensis Merriam. 



1899. Thomomys douglasi yelmensis MERRIAM, Proc. biol. 



soc. Washington, xm, p. 21. January 31, 1899. 

 TYPE LOCALITY. Tenino, Yelm Prairie, Thurston County, 

 Washington. 



Thomomys fossor Allen. 



1893. Thomomys fossor ALLEN, Bull. Amer. mus. nat. hist., 

 v, p. 51. April 28, 1893. 



TYPE LOCALITY. Florida, La Plata County, Colorado. Alti- 

 tude, 7200 feet. 



Thomomys fulvus (Woodhouse). 



1852. Geomys fulvus WOODHOUSE, Proc. acad. nat. sci. Phila., 



vi, p. 201. 



1857. Thomomys fulvus BAIRD, Mamm. N. Amer., p. 402. 

 1890. Thomomys fulvus MERRIAM, North Amer. fauna, no. 3, 



p. 71. September 11, 1890. 



