. Distribution of mammals in Colorado. Mammals. 74 MONOGRAPH MUSEUM OF NATURAL HISTORY NO. 3. mi. S Lyons (G. M. Allen, 1916:341); Crisman, Four- mile Canyon, 7000 ft. (Cary, 1911:204); Boulder Canyon, 7700 ft. (R. T. Young, 1908:407). MESA COUNTY (P. H. Miller, 1964:36): 4 mi. N Loma, 4659 ft.; 2 mi. NE Fruita, 4500 ft.; Unaweep Canyon. EL PASO COUNTY: 1 mi. N Glen Eyrie (Warren, 1942:30). LAS ANIMAS COUNTY: Trinidad (War- ren, 1906:267). Antrozous pallidus Pallid Rat The pallid bat apparently is restricted in Colorado to the semiarid canyonlands of the Western Slope, and broken, rocky areas
. Distribution of mammals in Colorado. Mammals. 74 MONOGRAPH MUSEUM OF NATURAL HISTORY NO. 3. mi. S Lyons (G. M. Allen, 1916:341); Crisman, Four- mile Canyon, 7000 ft. (Cary, 1911:204); Boulder Canyon, 7700 ft. (R. T. Young, 1908:407). MESA COUNTY (P. H. Miller, 1964:36): 4 mi. N Loma, 4659 ft.; 2 mi. NE Fruita, 4500 ft.; Unaweep Canyon. EL PASO COUNTY: 1 mi. N Glen Eyrie (Warren, 1942:30). LAS ANIMAS COUNTY: Trinidad (War- ren, 1906:267). Antrozous pallidus Pallid Rat The pallid bat apparently is restricted in Colorado to the semiarid canyonlands of the Western Slope, and broken, rocky areas in the southeastern part of the state, south of the Arkansas River. Pallid bats typically roost in fissures in rocks, but may also occupy build- ings. The status and natural history of An- trozous pallidus in Colorado are poorly known, but individuals generally are sedentary, and probably the species winters in the state. Antrozous pallidus pallidus (Le Conte) V[espertilio]. pallidus Le Conte, Proc. Acad. Nat. Sci. Philadelphia, 7:437, 1856; type locality, El Paso, El Paso Co., Texas. Antrozous pallidus, H. Allen, Smithsonian Misc. Coll., 7 (Publ. 165): 68, June 1864. Distribution in Colorado.—Semiarid can- yons of western and southeastern parts of state (Fig. 30). Measurements. — External and cranial measurements of two females (CU, uncata- logued) from Mesa County are: 119, 116; 52, 53; 11, 10; 36, 36; , ; condylobasal length, , ; zygomatic breadth, , ; interorbital constriction, , ; mastoid breadth, , ; length of maxillary toothrow, , ; length of mandibular toothrow, , Remarks. — Lechleitner (1969:53) noted that "one should be careful of identifications of bats from southeastern Colorado as it is extremely possible that Runker's bat, Antro- zous bunkeri, occurs in that area. . ." Morse and Glass (1960), however, regarded bunkeri as a subspecies of A. pallidus, and restricted the range of the subspecies to the
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Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectmammals
