Smithsonian National Museum of Natural History, North American Mammals
Search the Archive

  Rodentia · Heteromyidae · Perognathus amplus
   Smithsonian Institution
   Copyright Notice
   Privacy Notice
Perognathus amplus

Arizona Pocket Mouse

Order: Rodentia
Family: Heteromyidae

Image of Perognathus amplus
Click to enlarge. (58 kb)

Conservation Status: Least Concern.

Like other heteromyid rodents, Arizona Pocket Mice are solitary creatures. They spend the day in underground burrows, emerging only at night. In the wild, these Mice eat almost exclusively seeds of forbs or woody plants, though in captivity, they avidly consume lettuce and mealworms in addition to seeds. When the weather is cold, the Mice stay in their burrows, reducing their body temperature and metabolism, but rousing occasionally to eat cached seeds. This is not true hibernation, but a condition called torpor. It is a successful strategy to conserve energy while the temperature is too low for them to endure.

Sexual Dimorphism:

Average: 153 mm
Range: 135-173 mm

Average: 11.3 g
Range: 9.2-14 g


Osgood, W.H., 1900. Revision of the pocket mice of the genus Perognathus, p.32.  North American Fauna, 18:1-73.


Mammal Species of the World

Distribution of Perognathus amplus

Image of Perognathus amplus
Click to enlarge. (96kb)