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Smithsonian National Museum of Natural History, North American Mammals

  Rodentia · Sciuridae · Cynomys parvidens

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Cynomys parvidens

Utah Prairie Dog

Order: Rodentia
Family: Sciuridae

Image of Cynomys parvidens
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Conservation Status: Endangered.

The Utah prairie dog, extinct in more than 90 percent of its former range, is an endangered species protected by law. It now lives in a small area of southern Utah, between the ranges of Gunnison's prairie dog and the white-tailed prairie dog. Like the other species, it is social, living in colonies, and diurnal, spending its days feeding on grasses and herbs. In a captive colony that was excavated in winter, each prairie dog was found hibernating alone in a fairly deep chamber, 100-200 cm beneath the surface. The animals had plugged the entrance to their hibernating chambers with earth.

Sexual Dimorphism:

Males are larger than females.


Average: 341 mm males; 319.7 mm females
Range: 299-370 mm males; 290-368 mm females


Average: 636 g males; 516 g females
Range: 460-1,250 g males; 410-790 g females


Allen, J.A., 1905.  Mammals from Beaver County, Utah. Collected by the museum expedition of 1904, p. 119.  Bulletin of the Museum of Science, Brooklyn Institute of the Arts and Science, 1:117-122.


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Distribution of Cynomys parvidens

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