Exploration of the Colorado River of the West and Its Tributaries Explored in 1869, 1870, 1871, and 1872, Under the Direction of the Secretary of the Smithsonian Institution.

Page 250, Exploration of the Colorado River

250 EXPLORATION OF THE CANONS OF THE COLORADO. c. Smaller on an average ; usually six to seven inches long. Fore claws about 0.40 or less, leaving the hand decidedly shorter than the foot. Rich fulvous, or even fawn-color, the same below but paler, variously obscured on the back with dusky; tail and feet usually dark; face and mouth-parts sooty-blackish, sharply contrasting with white pouch-lining. Southern Interior and Lower California........... _ V........ c. umbrinus. B. Small; decidedly less than sdx inches long. Hind foot about 0.75; fore foot still less. Tail scarcely one-fourth as long as the head and body. Above, pallid yellowish-gray, with a shade of light-brown; below, entirely white; feet and tail white. Ears minute, not in a blackish area. Nose blackish. BridgerV Pass, Rocky Mountains.............................. 2. CLUSIUS, n. s. THOMOMYS TALPOIDES, (Rich.) Baird. Cricetus talpoides, RICH., Zool. Journ. iii, App. 1828, 518. (Plumbago-colored.) Geomys talpoides, RICH., F. B. A. i, 1829, 204; Rep. Brit. Assoc. for 1836, v, 1837, 157. (Same as the preceding, but "Florida" assigned wrongly as a locality.)-DEKAY, N. Y. Fn. 1842, 92. (Compiled from Richardson.)-SCHINZ, Synop. Mamm. ii, 1845, 137. (Compiled from Richardson.)-LECONTE, Proc. Acad. Nat. Sci. Phila. vi, 1852,162. (Compiled from Richardson.) Saccopliorus talpoides, FISCH., Synop. Mamm. 1829, 588 (marked " 388"). (Compiled from Richardson.) Ascomys talpoides, WAGN., Suppl. Schreb. iii, 1843, 390. (Compiled from Richardson.) Pseudostoma talpoides, AUD. & BACH., Q. N. A. iii, 1853, 43, pi. 110. (Compiled from Richardson; figure from the type-specimen.) Geomys (Thomomys) talpoides, GIEBEL, Saug. 1855, 530. (Compiled from Richardson.) Thomomys talpoides, BAIRD, M. N. A. 1857, 403. (Compiled from Richardson.) Geomys borealis, RICH., Rep. Brit. Assoc. for 1836, v, 1837,156. (Named, not described. " Saskatchewan.")- BACHM., Journ. Acad. Nat. Sci. Phila. 1839, 103. (Originally described from Richardson's type, "Columbia R.," marked "Pseudostoma borealis, Rich.")-DEKAY, N. Y. Fn. 1842, , 92. (Compiled from Bachman.)-SCHINZ, Synop. Mamm. ii, 1845, 136. (Compiled from Bachman.) Ascomys borealis, WAGN., Suppl. Schreb. iii, 1843, 391. (Compiled.) Saccophorus borealis, GRAY, List Br. Mus. 1843, 149 ("Canada;" mere mention, with some wrong synonyms).-MURIE, P. Z. S. 1870, 80 (as host of (Estrus). Pseudostoma borealis, " RICH. MSS."-AUD. & BACH., Q. N. A. iii, 1853, 198, pi. 142. (Description and figure apparently from the original specimens.) Thomomys borealis, BAIRD, Mamm. N. A. 1857, 396, pi. 22, figs. 2a-e. (Account from types of " borealis" and " townsendii," in Mus. Phila. Acad., with which a Californian specimen is considered probably identical.)-NEWB., P. R. R. Rep. vi, 1857, 59 (rests on the Californian specimen just mentioned).