THOMOMYS. 277 



685. Thomomys douglasi (Richardson). 



Gcotnys doiiglasii Rich., Faun. Bor. Amer., i, 1829, p. 200. 



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

 II, 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. 



(f. T/n>iitf)iin/s flojiglffsi j/i'lnirnsis Merriam. 



Thomomys douglasi yelmeiisis Merr., Proc. Biol. Soc. Wash., xiii, 

 1899, p. 21. Elliot, Syn. N. Am. Mamm., F. C. M. Pub., 11, 

 1901, p. 226. Zool. Ser. 

 Yelm Prairie Pocket Gopher. 



Type locality. Tcnino, Yelm Prairie, Thurston Countv, Wash- 

 ington. 



Geogr. Distr. Washington. Range unknown. 



h. T/i()inoin7/s iloughisi fusrus (Merriam). 



Thomomys clusins fusctis Merr., N. Am. Faun., No. 5, 1891, p. 70. 



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

 Pub., II, 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. 



('. ThoDioiuys (innglasi fisheri (Merriam). 



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

 p. III. 

 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 vertebrae, 62 ; hind foot, 25. 



(I. T/i()j)io])i i/s douglasi oi-cgoniis. Merri'am. 



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

 1901, p. 115. 

 Oregon Pocket Gopher. 



Type locality. Oregon City, Willamette Valley, Clackamas 

 County, Oregon. 



