f around outermost edge;
underparts creamy white with dark gray underfur. _Skull_: Smooth
and rounded; braincase inflated; zygomata strong. _Baculum_:
Broadened at base; shaft tapers rapidly to tip.

_Comparisons._--From _E. u. fremonti_, the subspecies from the
north in the mountains of northwestern Wyoming, _E. u. umbrinus_
differs in: Over-all tone of upper parts darker; sides lighter;
skull smaller. From _E. u. montanus_, the subspecies from the
Medicine Bow Range of south-central Wyoming, _E. u. umbrinus_
differs in: Over-all tone of upper parts darker; sides darker;
skull smaller.

_Remarks._--This subspecies occurs only in the foothills of the Uinta
Mountains in the southern part of Uinta County. These "foothills" are
well-timbered and at an altitude of 7,000 feet and higher.

_Specimens examined._--Total number, 23.

_Uinta Co._: 9 mi. S Robertson, 8,000 ft, 15; 10 mi. S and 1 mi. W
Robertson, 8,700 ft., 5; 11-1/2 mi. S and 2 mi. E Robertson, 9,200
ft., 1; 2 mi. E and 12 mi. S Robertson, Ashley Nat. Forest, 1; 13
mi. S and 2 mi. E Robertson, 9,200 ft., 1.

_Additional records_ (Howell 1929:95): _Uinta Co._: Henry Fork, 5
mi. W Lone Tree; Lone Tree.

Eutamias umbrinus fremonti White

_Eutamias umbrinus fremonti_ White, Univ. Kansas Publ., Mus. Nat.
Hist. 5:575, December 1, 1953.

_Type._--Male, adult, skull, skin, and baculum, No. 41790 (KU);
from 31 mi. N Pinedale, 8,025 ft., Sublette County, Wyoming;
obtained on July 8, 1951, by Rollin H. Baker; original No. 1596.

_Diagnosis._--Size large; over-all tone of upper parts dark; lower
tooth-row longest of this species in Wyoming.

_Description._--_Color pattern_: Crown Cinnamon Buff mixed with
gray; upper facial stripe Sepia; ocular stripe Chaetura-Drab;
submalar stripe Fuscous Black mixed with Sayal Brown; ears black;
anterior margin of ear Mars Yellow; posterior margin of ear grayish
white; hairs inside posterior part of pinna Dresden Brown;
postauricular patch Pale Smoke Gray; median dorsal dark stripe
black; lateral dorsal dark stripes black mixed with Sayal Brown;
outermost dorsal dark stripes Buckhorn Brown mixed with black or
sometimes absent; median pair of dorsal light stripes grayish mixed
with Buckhorn Brown; outer pair of dorsal light stripes creamy
white; sides Buckhorn Brown; rump and thighs Pale Smo