Calomys expulsus (Lund, 1841)

Don E. Wilson, Russell A. Mittermeier & Thomas E. Lacher, Jr, 2017, Cricetidae, Handbook of the Mammals of the World – Volume 7 Rodents II, Barcelona: Lynx Edicions, pp. 204-535 : 516-517

publication ID

https://doi.org/ 10.5281/zenodo.6707142

DOI

https://doi.org/10.5281/zenodo.6727652

persistent identifier

https://treatment.plazi.org/id/03F06D13-FF43-2089-085B-1EB30D69FBF4

treatment provided by

Carolina

scientific name

Calomys expulsus
status

 

707. View Plate 30: Cricetidae

Rejected Vesper Mouse

Calomys expulsus View in CoL

French: Calomys du Caatinga / German: Caatinga-Vespermaus / Spanish: Raton laucha excluyente

Other common names: Caatinga Laucha

Taxonomy. Mus expulsus Lund, 1840 , [Lagoa Santa, Rio das Velhas, Minas Gerais, Brazil.

Calomys mattevi described from the Caatinga domain is treated here as a junior synonym of C. expulsus . Monotypic.

Distribution. C highlands region in NE & C Brazil. View Figure

Descriptive notes. Head-body 85-7-113 mm, tail 62-82 mm, ear 15-3-18-7 mm, hindfoot 19:1-21-3 mm; weight 22-3-34-1 g. The Rejected Vesper Mouse is average-sized for a large, lowland species of Calomys ; tail is short, averaging c.74% of head-body length; dorsum is yellowish to olive brown, finely streaked with black hairs; sides are tawny, not as dark as dorsum, sharply countershaded relative to venter; no lateral line separates sides from venter; head is same color as dorsum; and venter is covered with white-tipped but gray-based hairs throughout but completely white around chin. Moderate to well-developed eye-ring is present. Forefeet and hindfeet are covered dorsally with short white hair, and claws are tufted. Tail is only weakly bicolored, slightly darker above, and ears are average length for the genus (c.17 mm) and covered by darker hair.

Habitat. Open vegetation such as grasslands and forest fringes of Cerrado and Caatinga biomes. The Rejected Vesper Mouse is also reportedly common in cultivated fields.

Food and Feeding. The Rejected Vesper Mouse is granivorous.

Breeding. Litters of the Rejected Vesper Mouse average 5-9 young; successive births occur after c.22 days. Puberty is reached, on average. at 22 days for males and 37 days for females.

Activity patterns. The Rejected Vesper Mouse is terrestrial.

Movements, Home range and Social organization. No information.

Status and Conservation. Classified as Least Concern on The IUCN Red List.

Bibliography. Araripe et al. (2006), Bonvicino & Almeida (2000), Bonvicino & Geise (2016), Bonvicino, Lima & Almeida (2003), Bonvicino, Oliveira & Gentile (2010), de Camargo et al. (2016), Cordeiro-Estrela et al. (2006), Gurgel-Filho et al. (2015), Hingst-Zaheret al. (2000), Magrini & Facure (2008), Mattevi et al. (2005), Mello & Teixeira (1977), Nascimento etal. (2011), SalazarBravo (2015c), Santos & Henriques (2010), Svartman & de Almeida (1992).

Kingdom

Animalia

Phylum

Chordata

Class

Mammalia

Order

Rodentia

Family

Cricetidae

Genus

Calomys

Loc

Calomys expulsus

Don E. Wilson, Russell A. Mittermeier & Thomas E. Lacher, Jr 2017
2017
Loc

Mus expulsus

Lund 1840
1840
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