genus of mammals

Chaetodipus is a genus of pocket mouse. Like other members of their family such as pocket mice in the genus Perognathus, they are more closely related to pocket gophers than to true mice.

Temporal range: Recent
Chaetodipus baileyi.jpg
Chaetodipus baileyi
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Family: Heteromyidae
Subfamily: Perognathinae
Genus: Chaetodipus
Merriam, 1889

Chaetodipus arenarius
Chaetodipus artus
Chaetodipus baileyi
Chaetodipus californicus
Chaetodipus dalquesti
Chaetodipus eremicus
Chaetodipus fallax
Chaetodipus formosus
Chaetodipus goldmani
Chaetodipus hispidus
Chaetodipus intermedius
Chaetodipus lineatus
Chaetodipus nelsoni
Chaetodipus penicillatus
Chaetodipus pernix
Chaetodipus rudinoris
Chaetodipus spinatus


Members of this genus range in size from 80–125 mm (head and body) and weigh 15-47 grams (Nowak, 1999). Unlike the silky pocket mice (genus Perognathus), most species of the genus Chaetodipus have harsh pelage with some bordering on spiny hair. They tend to be found in arid habitats where they feed on seeds, vegetation, and insects (Nowak, 1999). Females give birth to a litter of 2-9 young after a gestation period of just under a month. The longest recorded lifespan is 8 years and 4 months (Nowak, 1999).

Sometimes members of the genus Chaetodipus are placed in the genus Perognathus.


  • Nowak, Ronald M. 1999. Walker's Mammals of the World, 6th edition. Johns Hopkins University Press, 1936 pp. ISBN 0-8018-5789-9
  • Patton, J. L. 2005. Family Heteromyidae. pp. 844–858 in Mammal Species of the World a Taxonomic and Geographic Reference. D. E. Wilson and D. M. Reeder eds. Johns Hopkins University Press, Baltimore.