Smithsonian National Museum of Natural History, North American Mammals
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Peromyscus crinitus

Canyon Deermouse

Order: Rodentia
Family: Cricetidae

Image of Peromyscus crinitus
Peromyscus crinitus - left (with P. californicus)
Click to enlarge. (69 kb)

Conservation Status: Least Concern.

Canyon Deermice inhabit arid shrublands and grasslands in the inhospitable "slickrock" deserts of the West. In the canyons where they live, the common denominator is bare rock, and they are remarkably agile at scampering on vertical or even overhanging walls. Where they are in competition with other mice, Canyon Deermice live in rockier, more desolate areas and the other, larger species use the areas with trees or shrubs. When they can, Canyon Deermice feed mostly on green vegetation and insects, but when those are not available, fruits and seeds are the mainstays of their diets. They are active all year long, but probably enter torpor if food (and therefore the water they need, which they obtain from food) is scarce.

Also known as:
Canyon Mouse

Sexual Dimorphism:

Average: 175 mm
Range: 162-191 mm

Average: 17 g
Range: 13-23 g


Merriam, C.H., 1891.  Results of a biological reconnaissance of south central Idaho, p. 53.  North American Fauna, 5:1-127.


Mammal Species of the World

Mammalian Species, American Society of Mammalogists' species account

Distribution of Peromyscus crinitus