Part 6

Goshen Co.: Rawhide Buttes, 12 mi. S and 1 mi. W Lusk, 1.

Laramie Co.: unspecified, 1.

Additional records (Howell 1929:44): Big Horn Co.: Otto; Hyattville. Sheridan Co.: Powder River at mouth of Clear Creek; Sheridan; Arvada. Weston Co.: Thornton; Upton; Pine Ridge; Newcastle. Hot Springs Co.: head of Bridger Creek; Willow Creek, 10 mi. SW Thermopolis. Washakie Co.: 10 mi. S Manderson; Otter Creek, Bighorn Basin. Johnson Co.: Powder River Basin, near Pumpkin Buttes. Natrona Co.: Merino. Converse Co.: Douglas. Platte Co.: Guernsey; 15 mi. SW Wheatland. Goshen Co.: Rawhide Butte. Localities for which counties are unknown: Owl Creek Mountains; North Platte River.

Eutamias minimus confinis Howell

Eutamias minimus confinis Howell, Jour. Mamm. 6:52, February 15, 1925.

Type.--Female, adult, skull and skin No. 168957 (NM); from head of Trapper Creek, west slope of Bighorn Mountains, Big Horn County, Wyoming; obtained on July 7, 1910, by Merrit Cary; original No. 1956.

Diagnosis.--Size large; over-all tone of upper parts grayish brown; baculum large, as in E. m. pallidus.

Description.--Color pattern: Crown Clay Color mixed with Pale Smoke Gray; upper facial stripe Fuscous Black; other facial stripes Fuscous Black slightly mixed with Tawny; anterior margin of ear Yellow Ocher or Ochraceous-Orange; hairs inside posterior part of pinna Yellow Ocher or Ochraceous-Orange; posterior margin of ear Smoke Gray; postauricular patch buffy white or Smoke Gray; dorsal dark stripes black or Fuscous Black more or less mixed with Tawny or Tawny-Olive; dorsal light stripes creamy white, sometimes washed with Pale Smoke Gray; sides Raw Sienna or Cinnamon Buff; rump and thighs Pale Smoke Gray mixed with Tawny-Olive; dorsal surface of tail black mixed with Clay Color; ventral surface of tail Clay Color, black along margin and Light Buff or Light Ochraceous Buff along outermost edge; antipalmar and antiplantar surfaces of feet Pinkish Buff; underparts creamy white sometimes with grayish underfur. Skull and Baculum: Large but proportionally the same as in other subspecies of E. minimus.

Comparisons.--From E. m. silvaticus, the subspecies from the Black Hills, E. m. confinis differs in: General tone of upper parts darker, more reddish and less grayish; ventral surface of tail more tawny; skull and baculum of same size and proportions.

From E. m. operarius, the subspecies from the Laramie Range and other mountains of south-central Wyoming, E. m. confinis differs in: Rump and thighs darker; sides darker; general tone of upper parts more grayish.

For comparisons with E. m. minimus, E. m. consobrinus, and E. m. pallidus, see the accounts of those subspecies.

Remarks.--This subspecies is endemic to the Bighorn Mountains. Intergradation between E. m. confinis and E. m. minimus and between E. m. pallidus and E. m. confinis have already been discussed in the accounts of those subspecies.

Specimens examined.--Total number, 85.

Big Horn Co.: 12 mi. E and 2 mi. S Shell, 7,900 ft., 2; 13 mi. E and 2 mi. N Shell, 8,500 ft., 2; 13 mi. E Shell, 8,300 ft., 1; 17 mi. E and 3 mi. S Shell, 9,000 ft., 8; 17-1/2 mi. E and 4-1/2 mi. S Shell, 8,500 ft, 11; 19 mi. E and 4-1/2 mi. S Shell, 9,600 ft., 1; 9 mi. E and 9 mi. N Tensleep, 8,200 ft., 4.

Sheridan Co.: Medicine Wheel Ranch, 9,000 ft., 28 mi. E Lovell, 11; 38 mi. E Lovell, Big Horn Nat. For., 9,600 ft., 10; 5-1/2 mi. W and 1-1/2 mi. S Junction U.S. Highway 14 and Wyoming [State Highway] 14, 8,480 ft., 2.

Washakie Co.: 9 mi. E and 4 mi. N Tensleep, 7,000 ft., 26; 3 mi. SE Tensleep, 4,300 ft., 1.

Johnson Co.: 5-1/2 mi. W and 1 mi. S Buffalo, 6,500 ft., 4; 7-1/2 mi. W and 1 mi. S Buffalo, 6,500 ft., 2.

Additional records (Howell 1929:46): Sheridan Co.: 20 mi. from Sheridan. Washakie Co.: Head of Canyon Creek. Johnson Co.: Head of North Fork of Powder River.

Eutamias minimus silvaticus White

Eutamias minimus silvaticus White, Univ. Kansas Publ. Mus. Nat. Hist. 5 (19):259-262, April 10, 1952.

Type.--Female, adult, skull and skin, No. 20050 (KU); from 3 mi. NW Sundance, 5,900 ft., Crook County, Wyoming; obtained on July 4, 1947, by H. W. Setzer; original No. 1692.

Diagnosis.--Size large; over-all tone of upper parts brownish gray; sides Ochraceous Buff; baculum as in E. m. pallidus.

Description.--Color pattern: Crown Sayal Brown washed with Cinnamon Buff; facial stripes Fuscous Black mixed with Clay Color; anterior margin of ear Ochraceous-Orange; hairs inside posterior part of pinna Ochraceous Buff; posterior margin of ear and postauricular patch grayish white; dorsal dark stripes Fuscous Black more or less mixed with Ochraceous Buff; medial dorsal light stripes Pale Smoke Gray with Ochraceous Buff along margins; lateral dorsal light stripes grayish white or white with Ochraceous Buff along margins; sides Ochraceous Buff; rump and thighs Smoke Gray washed with Ochraceous Buff; dorsal surface of tail black interspersed with Ochraceous Buff; ventral surface of tail Ochraceous-Orange, with black along margin and Light Ochraceous Buff along outermost edge; antipalmar and antiplantar surfaces of feet Light Buff; underparts creamy white sometimes washed with Ochraceous Buff. Skull and Baculum: Large but of same proportions as in other subspecies of E. minimus.

Comparisons.--From E. m. operarius, the subspecies from south-central Wyoming, E. m. silvaticus differs in: Underside of tail lighter; general tone of upper parts grayer; sides lighter; skull and baculum of same size and proportions.

For comparisons with E. m. pallidus and E. m. confinis, see the accounts of those subspecies.

Remarks.--Intergradation between E. m. silvaticus and E. m. pallidus has already been discussed under the account of E. m. pallidus.

Specimens examined.--Total number, 42.

Crook Co.: 15 mi. N Sundance, Black Hills Nat. Forest, 5,500 ft., 6; 15 mi. ENE Sundance, 3,825 ft., 1; 3 mi. NW Sundance, 5,900 ft., 14; 1 mi. N Sundance, Black Hills Nat. Forest, 1.