Biology:Eva's desert mouse

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Short description: Species of rodent

Eva's desert mouse
Scientific classification edit
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Family: Cricetidae
Subfamily: Neotominae
Genus: Peromyscus
P. eva
Binomial name
Peromyscus eva
Thomas, 1898

Peromyscus eremicus carmeni Townsend, 1912

Eva's desert mouse (Peromyscus eva) is a species of rodent in the genus Peromyscus of the family Cricetidae found only in the Baja California peninsula of Mexico.[2]


Eva's desert mouse measures 19 cm (7.5 in) from head to rump, on average, and has a 10 cm (3.9 in) tail. They weigh between 13 and 20 grams (0.46 and 0.71 oz). The fur is russet or buff in color over most of the body, with pale grey markings on the nose, cheeks, and around the eyes. The ears are pale brown and almost hairless, and the underparts creamy white. It can most clearly be distinguished from the cactus mouse, which is found in the same geographical region, by the shape of the baculum, although it is also typically darker in color, and with a longer tail.[3]

Little is known of the animal's biology, although it is usually found close to succulent plants, and appears to breed between February and July.[3]

Distribution and habitat

Eva's desert mouse lives only in the southern part of the Baja California peninsula in Mexico. Within this region, it inhabits scrubland habitats below 1,800 m (5,900 ft) dominated by plants such as cholla, Jatropha, and organ-pipe cactus, and in agricultural land.[3] Two subspecies have been identified:

  • Peromyscus eva eva - Mainland Baja California Sur
  • Peromyscus eva carmeni - Carmen Island, in the Bahía de Loreto National Park


  1. Álvarez-Castañeda, S.T.; Castro-Arellano, I. (2016). "Peromyscus eva". IUCN Red List of Threatened Species 2016: e.T16660A22360342. doi:10.2305/IUCN.UK.2016-2.RLTS.T16660A22360342.en. Retrieved 13 November 2021. 
  2. Musser, G. G. and M. D. Carleton. 2005. Superfamily Muroidea. Pp. 894-1531 in Mammal Species of the World a Taxonomic and Geographic Reference. D. E. Wilson and D. M. Reeder eds. Johns Hopkins University Press, Baltimore.
  3. 3.0 3.1 3.2 Álvarez-Castañeda, S.T.; Cortés-Calva, P. (2003). "Peromyscus eva". Mammalian Species (738): 1–3. doi:10.1644/738. Retrieved 2015-06-24. 

Wikidata ☰ Q1767515 entry