THOMOMVS. 237 



Co/or. "Similar to T. iioui;/asi, but very much paler; face with 

 the dark markings of the mountain species." 



Measurements. Total length, 222; tail vertebra, 68; hind foot, 32. 



341. talpoides. (Cn'ee/i/s), Rich. Zool. Journ., iii, 1S28, p. 518. 

 f'<>rea/is, Rich, (nee Bach.) Rep. Brit. Ass. for 1836, vi, 1837, 



p. 150- 



Type locality. Hudson Bay. 



Geogr. Distr. Saskatchewan region south to Upper Missouri 

 region. 



Genl. Char. Size rather large; color dark; tail less than half the 

 length of body and head: mamma^ six pairs, two each, inguinal, pec- 

 toral and axillary. 



Color. Above graj'ish black, sometimes tinged with reddish; 

 chin, throat, patches on breast, feet and tail white; beneath plum- 

 beous. 



Measurements. Total length, 227; tail vertebrae, 50; hind foot, 32. 



a.—rufescens. (Thomomys), Wied. Nov. .-\cta. Acad. Caes. Leop., 1839, 

 xix, p. 383. 



Type locality. "Missouri." 



Geogr. Distr. Upper Missouri and valley of the Saskatchewan. 



Genl. Char. Cheek pouches small, furred. Tail nearly half the 

 length of body; feet broad, claws stout. 



Color. Upper parts and sides grayish yellow brown, darkest 

 on dorsal line Under parts, fore legs, hind feet, tail and inside of 

 cheek pouches yellowish white; Dusky spot behind ear. 



Measurements. Total length, 168; tail vertebrae, 54; hind foot, 29. 



342. melanops. {Thomomys), Merr., Proc. Biol. Soc. Wash., 1869, 



p. 21. 



Type locality. Solduck Trail, Olympic Mountains, Washington. 



Geogr. Distr. Olympic Mountains, Washington. Highelevation. 



Genl. Char. Size small; similar to T. mazama. 



Color. Above chestnut; nose space around eye and ear patch, 

 slate black; beneath plumbeous washed with fulvous; feet white; tail 

 hairs few and wide apart; above like the back; beneath whitish; tip 

 blackish. 



.}feasuremcnts. Total length, 206; tail vertebrae, 63; hind foot, 27. 



343. fulvus. {Gcomys), Woodh. Proc. Acad. Nat. Scien. Phil., 1852, 



p. 201. 

 umbrinus, Baird, N. .Am. Mamm., 1857, p. 399. 

 Type locality. San Francisco Mountains, New Mexico. 

 Geogr. Distr. New Mexico and Arizona to central California. 



