. Distribution of mammals in Colorado. Mammals. 122 MONOGRAPH MUSEUM OF NATURAL HISTORY NO. 3. Fig. 45. Distribution of two species of ground squirrels in Colorado. 1. Spermophilus richardsonii elegans. 2. Spermophilus spilosoma cryptospilotus. 3. S. s. obsoletus. 4. S. s. marginatus. For explana- tion of symbols, see p. 9. Hunt (1954:118) reported S. richardsonii from alluvium of Wisconsin (Pinedale) age at Denver. Spermophilus richardsonii elegans Kennicott Spermophilus elegans Kennicott, Proc. Acad. Nat. Sci. Philadelphia, 15:158, 1863; type locality, Fort Bridger, Uinta Co., Wyoming. [Sper
. Distribution of mammals in Colorado. Mammals. 122 MONOGRAPH MUSEUM OF NATURAL HISTORY NO. 3. Fig. 45. Distribution of two species of ground squirrels in Colorado. 1. Spermophilus richardsonii elegans. 2. Spermophilus spilosoma cryptospilotus. 3. S. s. obsoletus. 4. S. s. marginatus. For explana- tion of symbols, see p. 9. Hunt (1954:118) reported S. richardsonii from alluvium of Wisconsin (Pinedale) age at Denver. Spermophilus richardsonii elegans Kennicott Spermophilus elegans Kennicott, Proc. Acad. Nat. Sci. Philadelphia, 15:158, 1863; type locality, Fort Bridger, Uinta Co., Wyoming. [Spermophilus richardsoni] var. elegans, J. A. Al- len, Proc. Boston Soc. Nat. Hist., 16:292, 1874. Distribution in Colorado.—Mountain parks and valleys in northwestern and north-central parts of state, south to Gunnison, Chaffee, and Fremont counties (Fig. 45, and Hansen, 1962b: 59). Measurements.—External measurements of three males, followed by mean (and extreme) measurements of 10 females, all from Larimer County, are: 256, 280, 274, (260-302); 84, 96, 82, (62-98); 40, 43, 42, (39- 46); 10, 10, —, (9-16); weights of three females, 244, 340, 240. Selected cranial meas- urements are presented in table 11. Remarks.—Hansen (1962b: 62) noted that the population of S. richardsonii at the Colo- rado State Prison Farm near Canon City was disjunct from the conterminous range of the species in the state and may represent an introduced population. Records of occurrence.—Specimens examined, 280, distributed as follows: MOFFAT COUNTY: Two Bar Spring [20 mi. NW junction Little Snake and Yampa rivers], 2 (DMNH); 8 mi. NE Craig, 12 (CM); 23 mi. W Craig, 6300 ft., 3 (CM); Fortifica- tion Creek, N of Craig, 5 (UMMZ); Maybell, 2 (UMMZ); 9 mi. SW Craig, 1 (CM); between Craig and Kelley's 1 (WC); no locality other than county, 1 (CM). ROUTT COUNTY: Steamboat Springs, 7 (1 AMNH, 2 DMNH, 2 USNM, 2 WC); 15 mi. W Steamboat Springs, 1 (USNM); Elk River, 1 (DMNH); 13 mi. bel
Size: 1747px × 1430px
Photo credit: © Paul Fearn / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectmammals
