THOMOMYS. 277 



685. Thomomys douglasi (Richardson). 



Geomys douglasii Rich., Faun. Bor. Amer., i, 1829, p. 200. 



Thomomys douglasi Elliot, Syn. N. Am. Mamm., F. C. M. Pub., 



n, 1901, p. 226. Zool. Ser. 

 DOUGLAS' POCKET GOPHER. 



Type locality. Near mouth of the Columbia River, Oregon. 



Geogr. Distr. Lower Columbia River, northward into British 

 Columbia. 



a. T/inii/oiuys (Imiglaxi ijt'l iiu-nxi K Merriam. 



Thomomys douglasi yehnensis Merr., Proc. Biol. Soc. Wash., xui, 

 1899, p. 21. Elliot, Syn. N. Am. Mamm., F. C. M. Pub., n, 

 1901, p. 226. Zool. Ser. 

 YELM PRAIRIE POCKET GOPHER. 



Type locality. Tenino, Yelm Prairie, Thurston County, Wash- 

 ington. 



Geogr. Distr. Washington. Range unknown. 



b. Thoinornys UoiKjItixi fii.^ciis (Merriam). 



Thomomys clusius fuscus Merr., N. Am. Faun., No. 5, 1891, p. 70. 



Thomomys douglasi fuscus Elliot, Syn. N. Am. Mamm., F. C. M. 



Pub., n, 1901, p. 226. Zool. Ser. 

 SWARTHY POCKET GOPHER. 



Type locality. Mountains at head of Big Lost River, Custer 

 County, Idaho. 



Geogr. Distr. Mountains of central Idaho. 



c. TliiHiiotii a* (/(inv/r/xi fixlicri (Merriam). 



Thomomys fuscus fisheri Merr., Proc. Biol. Soc. Wash., xiv, 1901, 



p. in. 

 FISHER'S POCKET GOPHER. 



Type locality. Beckwith, Sierra Valley, Plumas County, Cali- 

 fornia. 



Geogr. Distr. California. Range unknown. 



Genl. Char. Similar to T. d. fuscus, but paler; comparative differ- 

 ences in skull. 



Color. Upper parts and beneath grayish brown. 



Measurements. Total length, 191 ; tail vertebras, 62 ; hind foot, 25. 



d . Thomomys douglasi or? gomes Merriam. 



Thomomys douglasi oregonus Merr., Proc. Biol. Soc. Wash., xiv, 



1901, p. 115. 

 OREGON POCKET GOPHER. 



Type locality. Oregon City, Willamette Valley, Clackamas 

 County, Oregon. 



