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

Oldfield Deermouse

Order: Rodentia
Family: Cricetidae

Image of Peromyscus polionotus
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Conservation Status: Least Concern.

Oldfield Deermice inhabit areas with loamy or sandy soils in the southeastern United States. Newly abandoned fields, where plants such as crabgrass are sprouting, provide good habitat. They are also found on grass-covered beach dunes and scrub areas nearby, where they are known as Beach Deermice. They are not found on poorly-drained or hard-packed soil. They live in burrows, usually digging their own, but sometimes taking advantage of tunnels dug by moles.

Also known as:
Beach Mouse, Oldfield Mouse

Sexual Dimorphism:
Females are larger than males.

Average: 135 mm
Range: 110-150 mm

Average: 13 g
Range: 10-15 g


Wagner, 1843. Arch. Naturgesch., 9, 2:52.


Mammal Species of the World

Distribution of Peromyscus polionotus

Image of Peromyscus polionotus
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Skull of Peromyscus polionotus
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