Part 2 (2/2)

_Skull_: Large; zygomata strong; braincase moderately inflated. _Baculum_: One of largest in species.

_Comparisons._--For comparisons with _E. u. umbrinus_, _E.

u. adsitus_, _E. u. sedulus_, and _E. u. nevadensis_, see the accounts of those subspecies.

_Remarks._--The baculum in _E. u. inyoensis_ is like that in _E.

palmeri_.

_Specimens examined._--Total number, 46.

=Nevada=: _Elko Co._: Head Ackler Creek, N end Ruby Mountains, 1; Steels Creek, N end Ruby Mountains, 1; Summit Secret Pa.s.s, 6,200 ft., Ruby Mountains, 2; Three Lakes, Ruby Mountains, 11; Long Creek, S fork, Ruby Mountains, 4; Harrison Pa.s.s R. S., Green Mountain Canyon, 1; W side Ruby Lake, 6 mi. N Elko Co. line, 3; W side Ruby Lake, 3 mi. N Elko Co. line, 8. _White Pine Co._: Willow Creek, 2 mi. S White Pine Co. line, Ruby Mountains, 6; W side Ruby Lake, 3 mi. S White Pine Co. line, 5; Overland Pa.s.s, E slope Ruby Mountains, 8 mi. S White Pine Co. line, 2.

=Utah=: _Boxelder Co._: Head of George Creek and Clear Creek, 5 mi. S Stanrod, Raft River Mountains, 8,500 ft., 2 UU.

=Eutamias umbrinus nevadensis= Burt

_Eutamias quadrivittatus nevadensis_ Burt, Jour.

Mamm. 12:299, August 24, 1931.

_Type._--Male, adult, skull and skin, No. 15884 Donald R.

d.i.c.key Collection; from Hidden Forest, Sheep Mountains, 8,500 ft., Clark County, Nevada; obtained on July 13, 1929, by W.

H. Burt; original No. 2337.

_Diagnosis._--Size medium; general tone of upper parts grayish; baculum one of the largest of species.

_Description._--”General tone of upperparts grayish; median dorsal stripe, extending from crown between ears to rump, black faintly bordered with 'verona brown'; lateral dark dorsal stripes similar to median stripe, but with anterior one-third deeply suffused with 'verona brown'; central light dorsal stripes grayish, slightly lighter than head and rump; lateral stripes white; head and rump 'pale smoke gray'; postauricular patch grayish white, a narrow margin extending up posterior border of ear; anterior portion of ear 'fuscous black' mixed with 'verona brown' at base and bordered by light gray; ocular stripe black grading into 'verona brown'

in front of ear; submalar stripe nearly obsolete, 'sayal brown'; sides of body grayish washed with 'verona brown'; feet grayish very faintly washed with 'pinkish buff'; dorsal surface of tail black overlaid with 'tilleul buff'; ventral surface of tail 'cinnamon buff' narrowly bordered by black then by 'tilleul buff'; ventral surface of body white.” (Burt 1931:299.) Skull similar to that of _E. u. inyoensis_ but differing as indicated below.

_Comparisons._--From _E. u. inyoensis_, the subspecies to the north, _E. u. nevadensis_ differs in: Paler and grayer throughout; tawny areas restricted; gray areas clearer and less suffused; dark facial markings narrower and less distinct; ventral surface of tail distinctly paler; feet lighter, clearer gray; nasals extend farther posteriorly with respect to premaxillae (Burt _loc. cit._).

From _E. u. adsitus_, the subspecies to the northeast, _E. u.

nevadensis_ differs in: Narrower dorsal stripes and facial markings; paler coloration of head, rump, sides, feet, and ventral surface of tail (Burt _op. cit._: 299-300).

_Remarks._--The differences between _E. umbrinus nevadensis_ and _E.

palmeri_, as shown by Burt (_op. cit._) and Hall (1946), are such that one might expect _E. palmeri_ to be a subspecies of _E. umbrinus_.

However, having only the structure of the baculum as evidence additional to that summarized by Hall (_op. cit._), I follow him in according _E. palmeri_ specific status.

_Specimens examined._--None.

=Eutamias umbrinus fremonti= new subspecies

_Type._--Male, adult, skull, skin, and baculum, No. 41790 Univ. Kansas Mus. Nat. Hist.; 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; sides Capucine Yellow; antiplantar surface of hind feet Raw Sienna; postauricular patch grayish white; baculum as in _E. u. umbrinus_.

_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; ear black; anterior margin of ear Mars-Yellow, posterior margin grayish white; hairs inside posterior portion of pinna Dresden-Brown; postauricular patch Pale Smoke Gray; median dorsal dark stripe black; lateral dorsal dark stripe black mixed with Sayal Brown; outermost dorsal dark stripe obsolete, Buckhorn-Brown mixed with black; median pair of dorsal light stripes grayish mixed with Buckhorn-Brown; outer pair of dorsal light stripes creamy white; sides Buckhorn-Brown; rump Pale Smoke Gray mixed with Saccardo's Umber; dorsal surface of tail black mixed with Buckhorn-Brown; ventral surface of tail Sayal Brown; outermost edge of tail Light Buff; antipalmar surface of forefeet Warm Buff; antiplantar surface of hind foot Ochraceous-Tawny; underparts creamy white with dark underfur.

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