174 
The Mammals of Colorado 
Wyoming, to and including the Yellowstone National Park." There 
is but little information at hand concerning this, and I have my 
doubts as to the correctness of this statement. 
This species has a wide range in Colorado, though apparently 
not very abundant at any one place. Throughout much of its range 
it is associated with either E. amoenus operarius or E. minimus 
consohrinus, and in either case these latter are usually the more 
abundant. It ranges from the western slope of the mountains to the 
eastern edge of the foot-hills, and even out into the plains region where 
there are tongues of timbered country extending into it. Grand 
Lake is at present the most northerly record for Colorado that I 
know of. Yarmony Creek, Eagle County; Wagon Wheel Gap, 
Mineral County; and Sapinero, Gunnison County, are the most 
western records. The species has been recorded from Grand, 
Eagle, Teller, Park, El Paso, Fremont, Chaffee, Custer, Saguache, 
Mineral, western Las Animas, and Gunnison counties. I do not 
think it ranges much above 9,000 feet elevation. 
Habits. — The Colorado Chipmunk lives among the forests, 
and in the brushy places, preferring probably the latter 
and especially liking rocky ground. Its food consists of 
seeds of various kinds, acorns, seeds from pine and spruce 
trees, and very likely insects. While it hibernates in cold 
weather, it has been seen every month in the year in mild 
winters about Colorado Springs, as also has E. operarius. 
Each of three females taken in Grand County, May 
ioth-2oth, contained 5 foetuses. This was at altitudes of 
from 8,200 to 8,500 feet. 
Eutamias quadrivittatus animosus (Lat. spirited). Las 
Animas Chipmunk. 
Eutamias quadrivittatus animosus Warren, Proc. Biol. Sac. Wash., 
XX., pp. 105-106 (1909). 
Type locality. — Irwin's Ranch, northeastern Las Animas County, 
Colorado; altitude 5,000 feet. 
Measurements. — Type, total length, 9.75; tail vert., 4.50; hind 
foot, 1.45. 
Description. — A very pale animal. Inner pair of light stripes 
grayish white, outer pair quite clear white; middle dark stripe 
