Smithsonian National Museum of Natural History, North American Mammals
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  Rodentia · Muridae · Peromyscus nasutus
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Peromyscus nasutus

Northern Rock Mouse

Order: Rodentia
Family: Muridae

Image of Peromyscus nasutus
Peromyscus nasutus - left (with P. gratus)
Click to enlarge. (73 kb)

Northern rock Mice live in rocky outcrops and among boulders in pinyon-juniper-oak woodlands in the foothills of mountains from Colorado and New Mexico south to Texas and northern Mexico. Populations of the Mice are separated from one another because the rocky habitat they find suitable is patchy. This Mouse has large ears shaped like oyster shells and a long, hairy, tail with which it can grasp branches as it climbs. Acorns appear to be important in its diet, but like other Peromyscus mice it is opportunistic, eating various nuts, berries, and plant materials, insects, and mushrooms. Much has yet to be discovered about this rare mouse.

Also known as:
Colorado Cliff Mouse, Juniper Mouse

Sexual Dimorphism:
None

Length:
Average: 195 mm
Range: 194-198 mm

Weight:
Range: 24-32 g

References:

Allen, J.A., 1891.  Bulletin of the American Museum of Natural History, 3:229.

Links:

Mammal Species of the World

Distribution of Peromyscus nasutus