E 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.

_Remarks._--Merriam (N. Amer. Fauna, 5:119, July 30, 1891) named this
subspecies on the basis of two specimens collected in the Black Hills
of South Dakota in July, 1888, and assigned it to the species
_Evotomys_ [= _Clethrionomys_] _gapperi_. He reported the diagnostic
characteristics as: "Similar to _E. gapperi_, but with larger ears and
shorter tail. The hazel of the dorsal area is not so bright as in
_gapperi_; the sides are the same golden brown." Of the cranial and
dental characteristics he wrote: "Much as in _E. gapperi_."

Bailey (Proc. Biol. Soc. Washington, 11:129, May 13, 1897), in his
"Revision of the American voles of the genus _Evotomys_," with one
additional specimen available, raised the Black Hills population to
specific status, re-emphasizing the shortness of the tail, and
pointing out a few slight cranial differences ("zygomatic arches low
and flaring out, so that the inner instead of the outer side shows in
top view; auditory bullae as large as in _gapperi_, but less
rounded").

Bailey (_loc. cit._) remarked that: "though based on so scanty
material, the characters distinguishing the spec