_Remarks._--From the description given by Doutt (Proc. Biol. Soc. Washington, 54:161, 1941) in his original description of this subspecies, it appears that he had available for comparisons, only subadult specimens of _C. g. galei_. As judged from the material of _C. g. uintaensis_ available to us (1 topotype, KU 38081, and 7 specimens from Uinta County, Wyoming, listed below) and from Doutt's (_op. cit._) description and measurements, the subspecies _C. g. uintaensis_ is but weakly differentiated from _C. g. galei_. No marked cranial differences are evident between the two subspecies; the differences in pelage noted by Doutt (_op. cit._:161), however ("Similar to _Clethrionomys gapperi galei_ from Ward, Colorado, but head and cheeks grayer; sides and back paler; belly whiter."), do seem to be valid. On the basis of these differences in pelage and the geographic isolation of the range, we judge that _uintaensis_ should be retained as a subspecies of _C. gapperi_. It is clear, however, that _C. g. uintaensis_ is less distinct from _C. g. galei_ than are the other adjacent subspecies. _Specimens examined._--Total, 8, all in the University of Kansas Museum of Natural History, distributed as follows: +Wyoming+: _Uinta County_: 9 mi. S Robertson, 8000-8400 ft., 3; 9 mi. S and 2 mi. E Robertson, 8000 ft., 2; 11-1/2 mi. S and 2 mi. E Robertson, 9200 ft., 1; 14 mi. S and 2 mi. E Robertson, 9000 ft., 1. +Utah+: _Uintah County_: Paradise Park, 21 mi. W, 15 mi. N Vernal, 10,050 ft., 1. _Additional, marginal records_ (Durrant, Univ. Kansas Publ., Mus. Nat. Hist., 6:356, August 19, 1952).--+Utah+: _Rich Co._: Monte Cristo, 18 mi. W Woodruff, 8000 ft. _Salt Lake Co._: Emigration Canyon, 8 mi. above forks, 6,000 ft.; Silver Lake Post Office (Brighton), 9,500 ft. _Wasatch Co._: Wolf Creek Summit, 9,800 ft. _Daggett Co._: Beaver Dams, 10,500 ft. +Clethrionomys gapperi gauti+, new subspecies _Type._--Male, adult, skin and skull; No. 133515, Biological Surveys Collections, United States National Museum, from Twining, 10,700 ft., Taos County, New Mexico; obtained on August 7, 1904, by James H. Gaut, original number 3086. _Range._--The Rocky Mountains of north-central New Mexico and south-central Colorado. _Diagnosis._--A brightly colored _Clethrionomys gapperi_; dorsal stripe near Chestnut (capitalized color terms after Ridgway, Color Standards and Color Nomenclature, Washington, D. C., 1912) with an underwash of near Light Ochraceous-Buff and a mixture of black-tipped guard hairs giving an over-all effect of between Tawny and Russet; braincase relatively large; zygomatic width and lambdoidal width large; nasals long.