Mean (9) | 31.5 | 17.6 | 15.2 | 9.7 | 193 | 85.6 | 4.78 | 16.52 | Min. | 30.3 | 17.0 | 14.9 | 8.9 | 183 | 77.0 | 4.58 | 15.63 | Max. | 32.4 | 18.2 | 15.5 | 10.6 | 203 | 91.0 | 5.12 | 17.37 | | | | | | | | | | Mean (8) | 32.2 | 18.0 | 15.4 | 9.7 | 203 | 85.7 | 4.86 | 16.50 | Min. [Female] | 31.1 | 17.6 | 15.0 | 9.2 | 194 | 79.0 | 4.64 | 15.44 | Max. | 33.4 | 18.5 | 15.8 | 10.2 | 212 | 92.0 | 5.11 | 17.21 | --------------+------+------+------+------+-----+-------+------+-------+ E. a. luteiventris, near Moran, Teton Co.
Mean (20) | 33.6 | 18.2 | 15.5 | 10.6 | 212 | 94.8 | 5.14 | 17.27 | Min. | 32.2 | 17.4 | 14.9 | 9.8 | 198 | 87.0 | 4.86 | 16.42 | Max. | 35.2 | 18.7 | 16.2 | 12.1 | 221 | 108.0 | 5.37 | 18.39 | | | | | | | | | | Mean (10) | 33.8 | 18.5 | 15.5 | 11.1 | 217 | 91.7 | 5.13 | 17.47 | Min. [Female] | 33.4 | 18.1 | 15.1 | 10.5 | 203 | 81.0 | 5.06 | 16.89 | Max. | 34.7 | 19.0 | 16.0 | 11.5 | 225 | 100.0 | 5.32 | 18.33 | --------------+------+------+------+------+-----+-------+------+-------+ E. d. utahensis, W side Green River, 1 mi. N Utah border.
Mean (4) | 34.7 | 18.9 | 16.4 | 10.8 | 197 | 84.5 | 5.08 | 17.91 | Min. | 34.7 | 18.7 | 16.4 | 10.5 | 191 | 81.0 | 5.00 | 17.77 | Max. | 34.8 | 19.2 | 16.4 | 11.1 | 203 | 88.0 | 5.15 | 18.06 | | | | | | | | | | Mean (2) | 36.0 | 19.5 | 16.3 | 11.3 | 211 | 88.0 | 5.25 | 18.87 | Min. [Female] | 35.5 | 19.4 | 16.2 | 11.3 | 210 | 86.0 | 5.22 | 18.73 | Max. | 36.6 | 19.7 | 16.4 | 11.4 | 212 | 90.0 | 5.28 | 19.02 | --------------+------+------+------+------+-----+-------+------+-------+ E. u. umbrinus, Mts. S Robertson, Uinta Co.
Mean (11) | 34.7 | 18.9 | 15.7 | 10.9 | 218 | 96.2 | 5.13 | 18.04 | Min. | 34.3 | 18.3 | 15.6 | 10.3 | 215 | 81.0 | 4.79 | 17.57 | Max. | 35.2 | 19.4 | 16.0 | 11.7 | 228 | 112.0 | 5.42 | 18.59 | | | | | | | | | | Mean (4) | 35.1 | 19.2 | 15.9 | 11.0 | 224 | 96.4 | 5.17 | 18.46 | Min. [Female] | 34.9 | 19.2 | 15.7 | 10.3 | 204 | 90.0 | 5.11 | 18.31 | Max. | 35.4 | 20.0 | 16.2 | 11.8 | 234 | 100.0 | 5.22 | 18.98 | --------------+------+------+------+------+-----+-------+------+-------+ E. u. fremonti, Togwotee Pass, Fremont Co.
Mean (8) | 35.6 | 19.3 | 15.9 | 11.4 | 223 | 99.0 | 5.34 | 19.17 | Min. | 35.2 | 18.9 | 15.8 | 11.1 | 216 | 95.0 | 5.22 | 18.72 | Max. | 36.5 | 19.7 | 16.1 | 11.8 | 243 | 111.0 | 5.57 | 19.78 | | | | | | | | | | Mean (6) | 35.3 | 19.6 | 15.9 | 11.3 | 229 | 101.0 | 5.40 | 19.02 | Min. [Female] | 34.5 | 19.3 | 15.7 | 10.9 | 223 | 92.0 | 5.35 | 18.37 | Max. | 36.0 | 20.0 | 16.5 | 12.0 | 239 | 110.0 | 5.44 | 19.51 | --------------+------+------+------+------+-----+-------+------+-------+ E. u. montanus, near Longs Peak, Boulder Co., Colorado.
Mean (5) | 35.2 | 18.8 | 15.5 | 10.8 | 226 | 96.0 | 5.20 | 18.29 | Min. | 34.7 | 18.4 | 15.2 | 10.1 | 215 | 93.0 | 5.03 | 17.80 | Max. | 36.8 | 19.4 | 16.2 | 11.5 | 232 | 115.0 | 5.53 | 19.36 | | | | | | | | | | Mean (6) | 35.7 | 19.1 | 15.6 | 10.9 | 226 | 98.0 | 5.28 | 18.67 | Min. [Female] | 35.1 | 18.8 | 15.1 | 10.3 | 215 | 89.0 | 5.06 | 18.09 | Max. | 36.5 | 19.5 | 16.0 | 11.5 | 231 | 105.0 | 5.58 | 19.35 | --------------+------+------+------+------+-----+-------+------+-------+
Eutamias amoenus (J. A. Allen)
Diagnosis.--Size medium; over-all tone of upper parts often grayish olive; baculum small or medium, slender; tip of baculum 30 to 38 per cent of length of shaft; skull medium, narrow across zygomata.
Comparisons.--From E. dorsalis utahensis, the only subspecies of this species in Wyoming, E. amoenus luteiventris differs in: Dorsal light and dark stripes distinct; over-all tone of upper parts less grayish (more tawny); tip of baculum less than 38 per cent of length of shaft in adult specimens.
From E. umbrinus fremonti, the only subspecies of this species which occurs in the same area with E. amoenus in Wyoming, E. a. luteiventris differs in: Smaller size; tawny underparts; base of baculum not noticeably widened.
For comparisons with E. minimus see the account of that species.
Eutamias amoenus luteiventris (J. A. Allen)
Tamias quadrivittatus luteiventris J. A. Allen, Bull. Amer. Mus. Nat. Hist., 3:101, June, 1890.
Eutamias amoenus luteiventris, Howell, Jour. Mamm., 3:183, August 4, 1922.
Type.--Male, adult, skull and skin, No. 11991/37996 (NM); from "Chief Mountain Lake" [Waterton Lake], 3-1/2 mi. N United States-Canadian Boundary, Alberta; obtained on August 24, 1874, by Elliot Coues; original No. 4596.
Diagnosis.--General tone of upper parts ochraceous; underparts strongly buffy; tip of baculum in adult specimens, more than 30 per cent and less than 38 per cent of length of shaft.
Description.--Color pattern: Crown Cinnamon mixed with Smoke Gray; upper two facial stripes black; submalar stripe Fuscous or Fuscous Black mixed with Ochraceous Tawny; anterior margin of ear Ochraceous Tawny; posterior margin of ear and postauricular patch Light Buff or buffy white; hairs inside posterior part of pinna Ochraceous Tawny; median dorsal dark stripe black; lateral pair of dorsal dark stripes black and mixed with Tawny, frequently brownish; median pair of dorsal light stripes white tinged with Pale Smoke Gray; lateral pair of dorsal light stripes creamy white; sides Tawny or Ochraceous Tawny; rump and thighs Dark Smoke Gray strongly mixed with Cinnamon Buff; dorsal surface of tail Fuscous Black mixed with Clay Color; ventral surface of tail Light Ochraceous Tawny, with Fuscous Black around margin and Clay Color around outermost edge; antipalmar and antiplantar surfaces of feet Cinnamon or Cinnamon Buff; underparts Cinnamon Buff or Light Ochraceous Buff. Skull: Size medium; moderately narrowed across zygomata. Baculum: Slender; not noticeably broadened at base; tip more than 30 per cent of length of shaft.
Remarks.--Although there are no records of this subspecies from the Wind River Mountains, it probably occurs there.
The niche that this subspecies occupies is similar to that of E. m. consobrinus as shown by the fact that these two subspecies have been taken together at the same places.
Specimens of E. a. luteiventris and E. umbrinus fremonti have been taken together at the same places.
In general, E. m. consobrinus occurs in open country and at the edges of forests, whereas E. u. fremonti occurs in the forest. E. a. luteiventris occurs in the intermediate habitat, that is to say, not far into the forest, and not so far out into the open as E. m. consobrinus.
Specimens examined.--Total number, 83.
Yellowstone Park: Unspecified, 2.
Park Co.: 31-1/2 mi. N and 36 mi. W Cody, 6,900 ft., 6; 29 mi. N and 31 mi. W Cody, 7,200 ft., 1; 28 mi. N and 30 mi. W Cody, 7,200 ft., 1; 16-1/4 mi. N and 17 mi. W Cody, 5,625 ft., 3; 25 mi. S and 28 mi. W Cody, 6,350 ft., 2.
Teton Co.: Two Ocean Lake, 2 (1 FC); Whetstone Creek, 8 (MM); Emma Matilda Lake, 1 (FC); Pacific Creek Road, 2-1/2 mi. E Moran, 1 (FC); Two Ocean Lake Road, 2 (FC); 2 mi. E Moran, 1 (FC); 2-1/2 mi. E and 1/4 mi. N Moran, 6,230 ft., 8; Pacific Creek, 1 (MM); junction of Two Ocean Lake Road and U.S. Highway 187, 2 (FC); Signal Mountain Road, 1 (FC); Leigh Lake, 9 (MM); Indian Paint Brush Canyon, Teton Park, 1 (MM); Teton National Park, 3; 3 mi. E and 1/4 mi. S Moran, 6,200 ft., 1; 3-3/4 mi. E and 1 mi. S Moran, 6,200 ft., 8; 2-1/2 mi. N and 3-1/2 mi. E Moran, 7,225 ft., 1; Timbered Island, 6,750 ft., 4 mi. N Moose, 5; Bar BC Ranch, 6,500 ft., 2-1/2 mi. NE Moose, 9; Grand Teton, 9,000 ft., Teton Park, 1 (MM); Upper Arizona Creek, Jackson, 1 (MM).
Lincoln Co.: 3 mi. N and 11 mi. E Alpine, 5,650 ft., 2.
Additional records (Howell 1929:69): Yellowstone Park: Mammoth Hot Springs; Roaring Mountain; Bunsen Peak; Yancey; Apollinaris Spring; Canyon; Yellowstone Lake; Upper Geyser Basin; Old Faithful. Park Co.: Near head of Clarks Fork; Pahaska, N Fork Shoshone River at Grinnell Creek; Valley. Teton Co.: Moran; Teton Mountains; Teton Pass. Lincoln Co.: Afton, Salt River Mountains; head of La Barge Creek, 9,100 ft.; Salt River Mountains, 10 mi. SE Afton. Sublette Co.: Merna; Stanley.
Eutamias dorsalis (Baird)
Geographic Distribution and Taxonomy of the Chipmunks of Wyoming · The Wunder Library — complete classics, free to read, with narration.