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

  Rodentia · Cricetidae · Peromyscus truei
   Smithsonian Institution
   Copyright Notice
   Privacy Notice
Peromyscus truei

Pinyon Deermouse

Order: Rodentia
Family: Cricetidae

Image of Peromyscus truei
Peromyscus truei - color variations: yellowish-brown (left) and grayish-brown (right)
Click to enlarge. (72 kb)

Conservation Status: Least Concern.

Pinyon Deermice reproduce from mid-February through mid-November, giving birth to litters of 3-6 blind, hairless young that weigh about 2.3 g each. The young have fur by the time they are two weeks old. At about 16-21 days, their eyes open and their ears unfold. They nurse for 3-4 weeks; sometimes a female becomes pregnant while she is still nursing a litter. These Deermice are common in arid and semi-arid regions in the West, at elevations from sea level to more than 2,300 m. They are found most often among rocks where pinyon pine and juniper grow, but are not limited to this habitat.

Also known as:
Big-eared Cliff Mouse, Palo Duro Mouse, Pinyon Mouse

Sexual Dimorphism:

Average: 195 mm
Range: 171-231 mm

Range: 15-50 g


Shufeldt, R.W., 1885.  Description of Hesperomys truei, a new species belonging to the subfamily Murinae, p. 407.  Proceedings of the U.S. National Museum, 8:403-408.


Mammal Species of the World

Mammalian Species, American Society of Mammalogists' species account

Distribution of Peromyscus truei

Image of Peromyscus truei
Click to enlarge. (78kb)