Related Chipmunk 
179 
Eutamias minimus consobrinus (Lat. related). 
Related Chipmunk. 
Tamias minimus consobrinus Allen, Bull. Am. Mus. Nat. Hist., 
p. 112 (1890). 
Type locality. — Wahsatch foot-hills, near Salt Lake City, Utah. 
Measurements. — As in E. minimus. 
Description. — (From a specimen taken in Eagle County, July 
23d): A very much darker-colored animal than the preceding; 
in midsummer pelage almost black-looking; the dark dorsal stripes 
are very black, with a faint edging of bright chestnut, and fairly 
wide; the inner light stripes narrow, quite a dark gray, the outer 
a much lighter gray, nearer white ; sides of body deep, bright rufous; 
flanks dark gray; upper surfaces of feet pale rufous or rusty; top 
of head black with gray and rufous hairs intermixed; dark facial 
stripes rather black; light stripes grayish, not very distinct; post- 
auricular spot grayish white ; below grayish white ; tail above, black, 
with some rufous intermixed; below, rufous with black border; the 
tail is thin as in E. minimus. In winter pelage the animal is 
grayer, and the colors are not so intense. 
Distribution. — The Related Chipmunk is found in eastern Utah, 
from the eastern border of the Great Basin eastward; in western 
Colorado; and possibly in northwestern New Mexico. 
This species is the small chipmunk of the greater portion of 
western Colorado, ranging from the mountains down to the cedar 
and pinon zone, where it overlaps the range of the Hopi Chipmunk. 
Though confined principally to the region west of the Continental 
Divide, it is found in the North Park, on the Atlantic Slope, here 
overlapping, as also at one or two points in Grand County, the 
range of operarius. Thus far it has not been reported from east of 
the La Plata Mountains in the San Juan region, its place east of these 
mountains being taken by E. operarius, which is reported from 
Silverton and Lake City, It goes, in Montezuma County, nearly, 
if not quite, to the southern border of the State ; it has been taken at 
Coventry, Montrose County, 6,800 feet altitude. Here the Hopi 
Chipmunk is very common. In Grand County it has been found 
in company with E. quadrivittatus , and at Yarmony Creek, Eagle 
County, consobrinus, quadrivittatus, and hopiensis were all found 
and taken, one each of the first two species, while the last named 
was very common. This occurrence is especially interesting 
from the fact that the locality is the most northwestern record 
for the Colorado Chipmunk, and the most northeastern for the 
Hopi. The species has been recorded from Larimer, Grand, Routt, 
