272 THOMOMYS. 



Oryctomys Eyd. & Gerv., Mag. Zool., vi, 1836, p. 23. (Part.) 

 Megascapheus Elliot, Pub. Field Columb. Mus., iii, 1903, p. 190. 

 Zool. Ser. 



Subgenus A. Megascapheus. 



669. Thomomys bulbivorus (Richardson). 



Diplostoina bulbivorum Rich., Faun. Bor. Amer., i, 1829, p. 206, 



pi. 18. B. 

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

 11, 1901, p. 222. Zool. Ser. 

 Great Pocket Gopher. 



Type locality. Banks of the Columbia River, Oregon. 

 Geogr. Distr. Shores of the Lower Columbia River, Oregon, to 

 coast of California north of San Francisco. 



Subgenus B. Thomomys, 



670. Thomomys fulvus (Woodhouse). 



Geomys jtdvus Woodh., Proc. Acad. Nat. Scien. Phil., 1852, p. 201. 



Thomomys fulvus Elliot, Syn. N. Am. Mamm., F. C. M. Pub., 11, 

 1901, p. 227. Zool. Ser. Id. Mamm. Middle Amer. & W. In- 

 dies, F. C. M. Pub., IV, Pt. I, 1904, p. 334, fig. XLVii. Zool. Ser. 



Ascomys um,brinus Wagn., Schreb. Saugth., Suppl., iv, 1843, 



P- 339- 

 Pseudostoma umbrinus Aud. & Bach., Quad. N. Am., 111, 1854, 



P- 307- 

 Thom.om.ys umbrinus Baird, N. Am. Mamm., 1857, p. 399. 



Reddish brown Pocket Gopher. 



Type locality. San Francisco Mountains, Coconino County, Ari- 

 zona. 



Geogr. Distr. State of Sonora, Mexico, north into New Mexico, 

 and Arizona to central California. Lower California? 



671. Thomomys nevadensis Merriam. 



Thomomys nevadensis Merr., Proc. Biol. Soc. Wash., xi, 1897, 

 p. 213. Elliot, Syn. N. Am. Mamm., F. C. M. Pub., 11, 1901, 

 p. 223. Zool. Ser. 

 Nevada Pocket Gopher. 



Type locality. Austin, Lander County, Nevada. 



Geogr. Distr. Nevada. Range unknown. 



672. Thomomys uinta Merriam. 



Thomomys uinta Merr., Proc. Biol. Soc. Wash., xiv, 1901, p. 112. 



