+Wyoming+: _Park County_: 28 mi. N and 3 mi. W Cody, 7200 ft., 1. _Big Horn County_: Medicine Wheel Ranch, 28 mi. E Lovell, 9000 ft., 22; 17-1/2 mi. E and 4-1/2 mi. S Shell, 1. _Teton County_: Moran, 6244 ft., 4; Moran, 3 (James Findley Collection); 2-3/4 mi. E Moran, 6300 ft., 1; 3-3/4 mi. E and 1 mi. S Moran, 6200 ft., 10. _Washakie County_: 9 mi. E and 9 mi. N Tensleep, 8200 ft., 3; 9 mi. E and 4 mi. N Tensleep, 7000 ft., 1. _Johnson County_: 4 mi. W and 1 mi. S Klondike, 6500 ft., 1; 6-1/2 mi. W and 2 mi. S Buffalo, 5620 ft., 1. _Lincoln County_: 3 mi. N and 11 mi. E Alpine, 5650 ft., 1. _Sublette County_: 31 mi. N Pinedale, 8025 ft., 1. _Fremont County_: Togwotee Pass, 5 (James Findley Collection); 20-1/2 mi. W and 2 mi. S Lander, 1; Mocassin [=Moccasin] Lake, 19 mi. W and 4 mi. N Lander, 10,100 ft., 3; 18 mi. W and 3 mi. N Lander, 1; Mosquito Park Ranger Station, 17-1/2 mi. W and 2-1/2 mi. N Lander, 9500 ft., 10; 6-1/2 mi. W and 17 mi. S Lander, 8450 ft., 4; 5-1/2 mi. W and 22 mi. S Lander, 8800 ft., 3. _Converse County_: 22 mi. S and 24-1/2 mi. W Douglas, 7600 ft., 3. _Carbon County_: 18 mi. SW Rawlins, 7500 ft., 2; 19 mi. E and 8 mi. N Encampment, 9150 ft., 4; 19-1/2 mi. E and 6 mi. N Savery, 8800 ft., 1; 11 mi. E and 6 mi. N Savery, 8400 ft., 1; 14 mi. E and 6 mi. N Savery, 1. _Albany County_: 3 mi. ESE Browns Peak, 10,000 ft., 59. +Colorado+: _Rio Blanco County_: 9-1/2 mi. SW Pagoda Peak, 7700 ft., 2. _Boulder County_: 2-1/2 mi. S Estes Park, 8400 ft., 2; 3 mi. S Ward, 8. _Clear Creek County_: 2 mi. S Idaho Springs, 8000 ft., 1. _Gunnison County_: Gothic, 8 mi. N Crested Butte, 6 (James Findley Collection). _Additional records._--+Colorado+: _Rio Blanco Co._: 25 mi. NE Meeker (Cary, N. Amer. Fauna, 33:120, 1911). _El Paso Co._: Lake Moraine, 10,250 ft. (Warren, Mammals of Colorado, p. 224, 1942). [Illustration: Map Geographic Range Clethrionomys gapperi] ~Fig. 1.~--Geographic ranges of the subspecies of _Clethrionomys gapperi_ in the southern Rocky Mountains. [Map Numbers For shaded areas.] 1. _C. g. galei_ 3. _C. g. uintaensis_ 5. _C. g. limitis_ 2. _C. g. brevicaudus_ 4. _C. g. gauti_ 6. _C. g. arizonensis_ +Clethrionomys gapperi brevicaudus+ (Merriam) 1891. _Evotomys gapperi brevicaudus_ Merriam, N. Amer. Fauna, 5:119, July 30. 1897. _Evotomys brevicaudus_, Bailey, Proc. Biol. Soc. Washington, 11:129, May 13. 1942. _Clethrionomys gapperi brevicaudus_, Bole and Moulthrop, Sci. Publ. Cleveland Mus. Nat. Hist., 5:153, September 11. _Type locality._--Three miles N Custer, 6000 ft., South Dakota. _Range._--The Black Hills of South Dakota and Wyoming.