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Chaetodipus eremicus

(Chihuahuan Desert Pocket Mouse)

Common Names

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Common Names in English:

Chihuahuan Desert Pocket Mouse, Chihuahuan Pocket Mouse, Eastern Desert Pocket Mouse


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Ecology: This species is found in association with sandy soils on creosote-scrub flats or in washes bordered by small desert trees such as mesquite or palo verde. Rocky soils are avoided. Prefers sparsely vegetated sandy desert floors and rock-free bottomland soils along rivers and streams (Schmidly 1977).

Sleeps and rears young in underground burrow. Most reproduction occurs in spring or late summer after rains have stimulated production of a new seed crop . Females become reproductive soon after emerging in about March from a brief period of winter inactivity and can produce several litters of 2 to 4 young. Gestation spans 3 to 4 weeks, and the young are weaned after another 3 weeks. When conditions are good, spring-born young breed during late summer of their first year; the populations then increase rapidly, reaching peak densities in the fall (Wilson and Ruff 1999). Dry seeds comprise most of the diet , although insect larvae and some green material are eaten occasionally.[1].

List of Habitats :


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Name Status: Accepted Name .

Last scrutiny: 22-Apr-2004

Chaetodipus eremicus formerly was included in C. penicillatus. Lee et al. (1996) examined range-wide variation in mtDNA and reviewed chromosomal, morphological, and biochemical data ; they concluded that C. p. eremicus should be recognized as a distinct species, which probably also includes subspecies atrodorsalis. The newly recognized species probably is conspecific with C. lineatus of San Luis Potosi, Mexico (Patton, in Wilson and Reeder 1993). Price (in Wilson and Ruff 1999) kept eremicus in C. penicillatus, but the North American mammal checklist by Baker et al. (2003) recognized C. eremicus as a valid species.[1].

Similar Species

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Members of the genus Chaetodipus

ZipcodeZoo has pages for 25 species and subspecies in this genus:

C. arenarius (Little Desert Pocket Mouse) · C. artus (Norrow-Skulled Pocket Mouse) · C. baileyi (Bailey’s Pocket Mouse) · C. baileyi baileyi (Baileyi's Pocket Mouse) · C. californicus (California Pocket Mouse) · C. californicus californicus (California Pocket Mouse) · C. californicus femoralis (Dalzura Pocket Mouse) · C. dalquesti (Dalquest's Pocket Mouse) · C. eremicus (Chihuahuan Desert Pocket Mouse) · C. fallax (San Diego Pocket Mouse) · C. fallax fallax (Northwestern San Diego Pocket Mouse) · C. fallax pallidus (Mountain Spring Pocket Mouse) · C. formosus (Long-Tailed Pocket Mouse) · C. goldmani (Goldman’s Pocket Mouse) · C. hispidus (Hispid Pocket Mouse) · C. hispidus hispidus (Hispid Pocket Mouse) · C. intermedius (Rock Pocket Mouse) · C. intermedius intermedius (Rock Pocket Mouse) · C. lineatus (Lined Pocket Gopher) · C. nelsoni (Nelson’s Pocket Mouse) · C. nelsoni nelsoni (Nelson's Pocket Mouse) · C. penicillatus (Desert Pocket Mouse) · C. pernix (Sinaloan Pocket Gopher) · C. rudinoris (Baja Pocket Mouse) · C. spinatus (Spiny Pocket Mouse)

More Info

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Further Reading

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Data Sources

Accessed through GBIF Data Portal March 14, 2008:



  1. Linzey, A.V., Timm, R., Álvarez-Castañeda, S.T., Castro-Arellano, I. & Lacher, T. 2008. Chaetodipus eremicus. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <>. Downloaded on 31 January 2012. [back]
Last Revised: 2014-11-21