W Cody, 5,625 ft., 2. _Teton Co._: 1 mi. E and 1/4 mi.
N Togwotee Pass, 9,800 ft., 2; Amphitheatre Lake, Teton Park,
1 MM; Flat Creek, 4 MM; head of Cache Creek, 4 MM; Jackson,
Upper Arizona Creek, 2 MM; Flat Creek-Granite Creek divide, 6
MM; Flat Creek Pass, 1 MM; Flat Creek-Gravel Creek divide, 2
MM. _Lincoln Co._: La Barge Creek, 9,000 ft., 2 BS. _Fremont
Co._: Togwotee Pass, 12; 12 mi. N and 3 mi. W Shoshoni, 4,650
ft., 1; Mosquito Park R. S., 9,500 ft., 17-1/2 mi. W and
2-1/2 mi. N Lander, 1; 17 mi. S and 6-1/2 mi. W Lander, 8,450
ft., 3. _Sublette Co._: 31 mi. N Pinedale, 8,025 ft., 2; W
side Barbara Lake, 10,300 ft., 8 mi. S and 3 mi. W Fremont
Peak, 4; 19 mi. W and 2 mi. S Big Piney, 7,700 ft., 5.

=Eutamias umbrinus montanus= new subspecies

_Type._--Male, adult, skull, skin, and baculum, No. 20105
Univ. Kansas Mus. Nat. Hist.; 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; sides Clay Color; antipalmar and
antiplantar surfaces of feet Cinnamon-Buff; baculum as in E.
u. umbrinus.

_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 Ochraceous-Tawny, posterior
margin and postauricular patch grayish white; hairs inside
posterior part of pinna Cinnamon-Buff; median dorsal dark
stripe black with Sayal Brown along margins; lateral dark
stripes black mixed with Sayal Brown; outermost dorsal dark
stripes obsolete, Sayal Brown mixed with black; 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; hairs around margin of tail Cinnamon-Buff
or Ochraceous-Tawny; antipalmar and antiplantar surfaces of
feet Cinnamon-Buff; underparts creamy white with dark
underfur. _Skull_: Large; zygomata strong; braincase well
inflated. _Baculum_: As in _E. u. umbrinus_.

_Comparisons._--From _E. quadrivittatus quadrivittatus_, the
subspecies and species to the south, _E. u. montanus_ differs