. Fig. 59. Distribution of Perognathus flavescens flavescens in Colorado. For explanation of symbols, see p. 9. Remarks.—Coloradan records of P. flaves- cens are from localities scattered over the plains and no definable geographic variation is apparent within the state. Specimens that 1 have examined agree well with mice from the Sand Hills of Nebraska, representatives of the nominotypical subspecies. None is as dark as representatives of P. f. cockrumi from cen- tral Kansas. I have not examined specimens of P. /. copei; were specimens of the plains pocket mouse available from Colorado south
. Fig. 59. Distribution of Perognathus flavescens flavescens in Colorado. For explanation of symbols, see p. 9. Remarks.—Coloradan records of P. flaves- cens are from localities scattered over the plains and no definable geographic variation is apparent within the state. Specimens that 1 have examined agree well with mice from the Sand Hills of Nebraska, representatives of the nominotypical subspecies. None is as dark as representatives of P. f. cockrumi from cen- tral Kansas. I have not examined specimens of P. /. copei; were specimens of the plains pocket mouse available from Colorado south of the Arkansas River, they might be expected to resemble that pallid race. Records of occurrence.—Specimens examined, 50, distributed as follows: LARIMER COUNTY: Lin- denmeier, 1 (USNM); Loveland, 1 (USNM). WELD COUNTY: 9 mi. N Nunn, 5400 ft., 1 (CSU); Cen- tral Plains Experiment Station, 1 (CSU); Greeley, 2 (USNM). LOGAN COUNTY: 2 1/2 mi. S, 12 mi. W Peetz, 1 (KU); Sterling, 3 (USNM). BOUL- DER COUNTY: Boulder, 1 (USNM). ADAMS COUNTY: 3 mi. NE Fitzsimmons, 1 (DMNH). ARAPAHOE COUNTY: 15 mi. E Denver, 2 (DMNH). WASHINGTON COUNTY: Eastern Colorado Range Experiment Station, 14 mi. N Akron, 18 (2 KU, 16 UU); 8 mi. W Akron, 1 (UMMZ); Akron, 6 (UMMZ); 10 mi. S, 7 mi. E Otis, 1 (KU); no locality other than county, 3 (UMMZ). YUMA COUNTY: N of Wray, 1 (CU). KIT CARSON COUNTY: Turtle, 1 (USNM). EL PASO COUNTY: 6 mi. E Colorado Springs, 1 (UMMZ). CHEYENNE COUNTY: 1 mi. N, 8 mi. E Kit Carson, 1 (KU). PUEBLO COUNTY: Pueblo, 2 (USNM). Additional record: EL PASO COUNTY: Peyton Road, 14 mi. E Fountain (Norris and Banta, 1965: 55).
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