Oligoryzomys fulvescens

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Oligoryzomys fulvescens
From left to right: complete skull in views from above, aside, and below.
Holotype skull of Oryzomys navus, a junior synonym.
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Family: Cricetidae
Subfamily: Sigmodontinae
Genus: Oligoryzomys
Species: O. fulvescens
Binomial name
Oligoryzomys fulvescens
(Saussure, 1860)

Oryzomys navus Bangs, 1899

Oligoryzomys fulvescens, also known as the fulvous colilargo,[2] fulvous pygmy rice rat,[1] or northern pygmy rice rat,[3] is a species of rodent in the genus Oligoryzomys of family Cricetidae. It is found from southern Mexico through Central America into South America, where it occurs south into Peru and Brazil, and includes numerous synonyms, including the type species of the genus, Oryzomys navus Bangs, 1899.[2] The taxonomy of this species is unresolved, and it may be found to contain more than one species.[1] Its karyotype has 2n = 54-60 and FNa = 68-74.[4]


  1. ^ a b c Weksler et al., 2008
  2. ^ a b Musser and Carleton, 2005
  3. ^ Duff and Lawson, 2004
  4. ^ Weksler, M.; Bonvicino, C. R. (2005-01-03). "Taxonomy of pygmy rice rats genus Oligoryzomys Bangs, 1900 (Rodentia, Sigmodontinae) of the Brazilian Cerrado, with the description of two new species" (PDF). Arquivos do Museu Nacional, Rio de Janeiro. 63 (1): 113–130. ISSN 0365-4508. Archived from the original (PDF) on 2012-03-26. Retrieved 2012-04-22.

Literature cited

  • Duff, A. and Lawson, A. 2004. Mammals of the World: A checklist. New Haven: A & C Black. ISBN 0-7136-6021-X.
  • Musser, G.G.; Carleton, M.D. (2005). "Superfamily Muroidea". In Wilson, D.E.; Reeder, D.M. Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. p. 1141. ISBN 978-0-8018-8221-0. OCLC 62265494.
  • Weksler, M., Aguilera, M. and Reid, F. 2008. Olligoryzomys fulvescens. In IUCN. IUCN Red List of Threatened Species. Version 2009.2. <www.iucnredlist.org>. Downloaded on November 27, 2009.

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