. Fig. 105. Distribution of Spilogale putorius in Colorado. 1. S. p. gracilis. 2. S. p. interrupta. For explanation of symbols, see p. 9. ; zygomatic breadth, (), , ; interorbital constriction, (), , ; postorbital constric- tion, (), —, ; mastoid breadth, (), , ; length of maxillary toothrow, (), , Remarks.—It is not known whether the ranges of S. p. gracilis and S. p. interrupta meet in Colorado, and the intergradation be- tween the two subspecies has not been dem- onstrated in
. Fig. 105. Distribution of Spilogale putorius in Colorado. 1. S. p. gracilis. 2. S. p. interrupta. For explanation of symbols, see p. 9. ; zygomatic breadth, (), , ; interorbital constriction, (), , ; postorbital constric- tion, (), —, ; mastoid breadth, (), , ; length of maxillary toothrow, (), , Remarks.—It is not known whether the ranges of S. p. gracilis and S. p. interrupta meet in Colorado, and the intergradation be- tween the two subspecies has not been dem- onstrated in the state. Apparently the two kinds meet in Laramie County, Wyoming, without intergradation (see Van Gelder, 1959: 272 or Long, 1965:700). In the vicinity of Black Mesa, Cimarron Co., Oklahoma, the two subspecies apparently are adjacent but ecologically segregated, gracilis inhabiting the rimrock, and interrupta occurring along the Cimarron River (Van Gelder, op. ). An analogous situation is perhaps to be ex- pected in southern Baca County, Colorado, although S. p. gracilis presently is the only kind of spotted skunk known from that part of the state. A single specimen from Furnace Canyon, Baca County, was considered by Van Gelder (loc. cit.) to exhibit intergradation between S. p. gracilis and S. p. leucoparia, although referable to the former subspecies. Records of occurrence.—Specimens examined, 37, distributed as follows: LARIMER COUNTY: 2 mi. NW Livermore, 2 (KU); 2 mi. N Dixon Dam, 1 (CSU); 4 mi. SW Fort Collins, 1 (CSU); 5 mi. SW Fort Collins, 6000 ft., 1 (CSU); 3 mi. N Estes Park, 8000 ft., 1 (KU); Estes Park, 1 (AMNH); Arkins, 1 (USNM). WELD COUNTY: 2 mi. N, 4 1/2 mi. E Greeley, 2 (CSU). RIO BLANCO COUNTY: Dry Fork, White River, 6500 ft, 1 (AMNH). BOULDER COUNTY: Lyons, 1 (FMNH); 1 mi. S, 1 mi. E Lyons, 1 (RMNP); Boulder, 1 (FMNH). MESA COUNTY: 3 mi. S Mack, 1 (CM); [2 mi. S] Grand Junction, 1 (USNM); Pinon Mesa, 30 mi. S Grand Junction, 1 (CM). PARK CO
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