Smithsonian National Museum of Natural History, North American Mammals
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Chaetodipus intermedius

Rock Pocket Mouse

Order: Rodentia
Family: Heteromyidae

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Conservation Status: Least Concern.

As their name indicates, Rock Pocket Mice dwell in rocky habitats, and only rarely live in areas with sandy or silty soils. Their inconspicuous burrows are located near or under rocks, in rocky gulches or canyons, or near boulders. The mouse pictured is sitting on a lava rock, probably in New Mexico, and the color of its fur blends with the dark rock. This is typical of pocket mice - their color often matches the background color of their habitat. Rock Pocket Mice breed from February or March through July, and young have been seen from April through August.

Also known as:
Intermediate Pocket Mouse

Average: 172 mm
Range: 157-188 mm

Range: 10.5-19.9 g


Merriam, C.H., 1889.  Preliminary revision of the North American pocket mice (genera Perognathus et Cricetodipus auct.) with descriptions of new species and subspecies and a key to the known forms, p. 18.  North American Fauna, 1:1-36.


Mammal Species of the World

Distribution of Chaetodipus intermedius

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