W Stanley; Big Sandy. _Fremont Co._: Jackey's Creek, 4 mi. SW
Dubois; Bull Lake, Wind River Mountains; Lake Fork, Wind River
Mountains; Fremont Peak.

Eutamias umbrinus montanus White

_Eutamias umbrinus montanus_ White, Univ. Kansas Publ. Mus. Nat.
Hist. 5:576, December 1, 1953.

_Type._--Male, adult, skull, skin, and baculum; 20105 (KU); from
1/2 mi. E and 3 mi. S Ward, 9,400 ft., Boulder County, Colorado;
obtained on August 1, 1947, by E. L. Cockrum; original No. 721.

_Diagnosis._--Size large; over-all tone of upper parts light; sides
light.

_Description._--_Color pattern_: Crown Raw Sienna mixed with gray;
upper facial stripe and ocular stripe black mixed with Sepia;
submalar stripe Snuff-Brown mixed with black; ear black or Sepia;
anterior margin of ear Ochraceous Tawny; posterior margin of ear
and postauricular patch grayish white; hairs inside posterior part
of pinna Cinnamon Buff; median dorsal dark stripe black with Sayal
Brown along margins; lateral pair of dorsal dark stripes black
mixed with Sayal Brown; outermost pair of dorsal dark stripes Sayal
Brown mixed with black or sometimes lacking; median pair of dorsal
light stripes Pale Smoke Gray mixed with Clay Color; outer pair of
dorsal light stripes creamy white; sides Clay Color; rump and
thighs Neutral Gray; dorsal surface of tail black mixed with
Cinnamon Buff; ventral surface of tail Ochraceous Tawny, with black
along margin and Cinnamon Buff or Ochraceous Tawny along outermost
edge; antipalmar and antiplantar surfaces of feet Cinnamon Buff;
underparts creamy white with dark underfur. _Skull_: Large;
zygomata strong and arched; braincase well inflated. _Baculum_:
Broad at base; shaft tapers sharply to tip.

_Comparisons._--For comparisons with _E. u. umbrinus_ and _E. u.
fremonti_, see the accounts of those subspecies.

_Remarks._--Although in Wyoming this subspecies is known only from the
Medicine Bow Range, one would expect to find it occurring in the Snowy
Range and the Laramie Range as well, since there seems to be suitable
habitat for this subspecies in those mountain ranges.

_Specimens examined._--Total number, 3.

_Albany Co._: 8 mi. ESE Browns Peak, 10,000 ft., 2; 3-1/2 mi. S
Wood's Landing, 1.

REVIEW AND CONCLUSIONS

_Eutamias minimus_ in Wyoming is divisible into two size-groups of
subspecies;