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

San Esteban Deermouse

Order: Rodentia
Family: Cricetidae


Conservation Status: Critically Endangered.

Another critically endangered species, the San Esteban Deermouse is known only from an island in the Gulf of California off the coast of Sonora, Mexico. Many small island-dwelling rodents had only the occasional owl to worry about until people brought cats to the islands.

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

Range: 15 to more than 110 g


Townsend, 1912. Bulletin of the American Museum of Natural History, 31:126.


Mammal Species of the World

Distribution of Peromyscus stephani