Oligoryzomys nigripes

Oligoryzomys nigripes
Conservation status
Least Concern (IUCN 3.1)[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Rodentia
Family:	Cricetidae
Genus:	Oligoryzomys
Species:	O. nigripes (Olfers, 1818)
Binomial name
Oligoryzomys nigripes
Synonyms
Mus nigripes Olfers, 1818 Oryzomys delticola Thomas, 1917 Hesperomys eliurus Wagner, 1845 Hesperomys pygmaeus Wagner, 1845 Mus tarso nigro Fischer, 1814 Oryzomys (Oligoryzomys) utiaritensis J.A. Allen, 1916

Oligoryzomys nigripes, also known as the Black-footed Colilargo^[2] or the Black-footed Pygmy Rice Rat,^[1] is a rodent in the genus Oligoryzomys of family Cricetidae. It is found from Pernambuco in northeastern Brazil through the Atlantic Forest and Cerrado into Paraguay, Uruguay, and Argentina, where it occurs in the provinces of Chaco, Misiones, and Buenos Aires.^[3] Two other species, Oligoryzomys delticola (also known as the Delta Pygmy Rice Rat^[4] or the Large Colilargo)^[2] and Oligoryzomys eliurus (also known as the Brazilian Pygmy Rice Rat^[5] or the Brazilian Colilargo)^[2] have been recognized as synonyms of O. nigripes since 2005; they cannot be distinguished on the basis of morphology, karyotype, or morphometrics.^[6] It is a large species with long ears, dark yellow to dark brown upperparts, sharply delimited from the whitish underparts, and often a pink girdle on the chest. The karyotype is 2n = 62, FNa = 78–82.^[3]

References

1. ^ ^{a b} Weksler et al., 2008
2. ^ ^{a b c} Musser and Carleton, 2005
3. ^ ^{a b} Weksler and Bonvicino, 2005, p. 119
4. ^ Pardinas and D'Elia, 2008
5. ^ Leite and Patterson, 2008
6. ^ Weksler and Bonvicino, 2005, p. 120

Literature cited

• Leite, Y. and Patterson, B. 2008. Oligoryzomys nigripes. In IUCN. IUCN Red List of Threatened Species. Version 2009.2. <www.iucnredlist.org>. Downloaded on November 28, 2009.
• Musser, G.G. and Carleton, M.D. 2005. Superfamily Muroidea. Pp. 894–1531 in Wilson, D.E. and Reeder, D.M. (eds.). Mammal Species of the World: a taxonomic and geographic reference. 3rd ed. Baltimore: The Johns Hopkins University Press, 2 vols., 2142 pp. ISBN 978-0-8018-8221-0
• Pardinas, U. and D'Elia, G. 2008. Oligoryzomys nigripes. In IUCN. IUCN Red List of Threatened Species. Version 2009.2. <www.iucnredlist.org>. Downloaded on November 28, 2009.
• Weksler, M. & Bonvicino, C.R. 2005. Taxonomy of pygmy rice rats genus Oligoryzomys Bangs, 1900 (Rodentia, Sigmodontinae) of the Brazilian Cerrado, with the description of two new species. Arquivos do Museu Nacional 63(1):113–130.
• Weksler, M., Bonvicino, C., D'Elia, G. and Teta, P. 2008. Oligoryzomys nigripes. In IUCN. IUCN Red List of Threatened Species. Version 2009.2. <www.iucnredlist.org>. Downloaded on November 28, 2009.