True's Deer-Mouse 
135 
Montezuma and Montrose counties, at the same localities as True's 
and the Golden-breasted Deer-mice, but it does not seem to be as 
common as either of the other two. It has also been taken at Salida, 
Chaffee County, at a considerable distance from any other recorded' 
locality; and very recently I have taken it at Irwin's Ranch, in 
northeast Las Animas County, P. truei and P. nehrascensis being 
also taken there. It is certainly a very peculiar distribution, and 
needs much further investigation. 
Habits. — This is also one of those species confined, in our 
State at least, to the cedar and pinon zone, where it lives 
among the rocky places. Bailey says that in Texas it is 
often found away from the rocks, but always among the trees 
above named, and also oaks. He says that its food is 
largely the berries of the cedar, or juniper, as it should properly 
be called, and likely enough these berries form much of its 
food here, as the empty hulls of the berries are abundant 
about the rocks where it lives. 
Peromyscus truei (for F. W. True). True's Deer-Mouse 
He s per omys truei Shufeldt, Proc. U. S. N. M., viii., p. 407 (1885). 
Type locality. — Fort Wingate, N. M. 
Measurements. — Total length, 7. 2 5 ; tail vert., 3.5 ; hind foot, 0.95, 
Description. — (From a specimen taken in western Montezuma 
County, April 9th) : Fur moderately long and silky. Upper parts 
a pale brown, darkest on back caused by a slight mixture of black 
hairs. Feet and under parts white. Tail with distinct pencil: up- 
per part blackish. Ears very large, i.o in specimen described. 
Distribution. — True's Deer-mouse is found in eastern California, 
Nevada, Utah, Arizona, New Mexico, and Colorado, and also 
Chihuahua, Mexico. In Colorado it has been taken at Rinehart 
Stage Station, southeast Prowers County; Gaume's Ranch, north- 
west Baca County; Irwin's Ranch, northeast Las Animas County; 
Salida, Chaffee County; Ashbaugh's Ranch, Montezuma County; 
Coventry, Bedrock, and Uncompahgre Plateau, Montrose County; 
Debeque and Plateau Creek, Mesa County; Glenwood Springs and 
Rifle, Garfield County; Rangely, Rio Blanco County; Lily and 
Douglas Spring (Escalante Hills), Routt County; and McCoy, Eagle 
County. The species does not seem to range much higher than 
the cedar and pinon zone, a little over 7,000 feet. 
