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

San Lorenzo Deermouse

Order: Rodentia
Family: Cricetidae


Conservation Status: Critically Endangered.

San Lorenzo Deermice have long, soft fur and large, shell-shaped ears. They are not easily distinguished from the mainland species, Peromyscus eremicus. They live only on three islands in the northern Gulf of California, and are critically endangered. On many small islands, introduced cats have spelled doom for small rodents.

Range: Head and Body: 70-170 mm; Tail: 40-205 mm

Range: 15 to more than 110 g


Burt, W.H., 1932. Transactions of the San Diego Society of Natural History, 7:175.


Mammal Species of the World

Distribution of Peromyscus interparietalis