15S The Mammals of Colorado 
Distribution. — This species is found in eastern New Mexico, 
western Texas and Oklahoma, southwestern Kansas, and south- 
eastern Colorado. Its range in Colorado is not very well worked 
out ; it is found near Pueblo, where it seems to be the common species 
of Spermophile, and is found thence east to the Kansas line; just 
how far north it goes I do not know. One has been taken near 
Denver. I have taken it at Lamar, Prowers County, and at ]\Ionon, 
Baca County. 
FIG. 53. LARGE SPOTTED sPERMOPHiLEs, Citellus spUosoma major 
(Young.) From Hfe. Herman W. Nash, Photo. 
Habits. — The habits of this species are similar in many 
respects to those of C. tridecemlineatus pallidus, described 
beyond. They are rather shy and quiet little animals, and 
from what little I have seen of them seem to prefer the sandy 
soils. Those which I took at Lamar and Monon were living in 
burrows under yuccas, in the same places as the kangaroo rats. 
Citellus obsoletus (Lat. obsoletiis, worn out). Kennicott's 
Spermophile. 
Spermophihis obsoletus Kennicott, Proc. Acad. Nat. Set. Phila., 
V- 157 (1863). 
