86 Cary A Colorado Record for Callospermophilus Wortmani. 



Callospermophilus wortmani Allen. 



A pale example of Callospermophilus taken on the Snake Eiver bluffs 

 just south of the Colorado-Wyoming line, 20 miles southwest of Baggs 

 Crossing, Wyoming, August 26, 1906, proves referable to wortmani, which 

 was described from specimens taken at Kinney Ranch, Sweetwater County, 

 Wyoming, only 40 miles north of the Snake River Valley. The above 

 specimen, the only Callospermophilus seen in the valley of Snake River, 

 was captured in a trap set for Neotoma among scattering cedars on a steep, 

 rocky bluff on the north side of Snake River. Another individual seen a 

 few days later among the bluffs on the north side of Bear River, a few 

 miles below Maybell, appeared to be fully as pale as the Snake River 

 specimen, and was doubtless wortmani. The range of this species in 

 Colorado is probably restricted to the arid and rough badlands region 

 bordering the lower Snake and Bear rivers, since specimens of Callosper 

 mophilus from mountainous localities to the east, south and west are 

 later alis. 



