Oligoryzomys longicaudatus

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Oligoryzomys longicaudatus
Raton colilarga.jpg
Conservation status
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Family: Cricetidae
Genus: Oligoryzomys
Species: O. longicaudatus
Binomial name
Oligoryzomys longicaudatus
(Bennett, 1832)
Oligoryzomys longicaudatus distribution.png

Oligoryzomys longicaudatus, also known as the long-tailed colilargo[2] or long-tailed pygmy rice rat,[1] is a species of rodent in the genus Oligoryzomys of family Cricetidae. It is found in the southern Andes of Chile and Argentina, with an outlying population in eastern Argentina.[1] Its karyotype has 2n = 58 and FNa = 74.[3] O. longicaudatus is the principal reservoir host of Andes virus (ANDV), which causes most cases of hantavirus cardiopulmonary syndrome in South America.[4]


  1. ^ a b c Pardinas et al., 2008
  2. ^ Musser and Carleton, 2005
  3. ^ 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. Retrieved 2012-04-22. 
  4. ^ Medina, Rafael A.; Torres-Perez, Fernando; Galeno, Hector; Navarrete, Maritza; Vial, Pablo A.; Palma, R. Eduardo; Ferres, Marcela; Cook, Joseph A.; Hjelle, Brian (2008). "Ecology, Genetic Diversity, and Phylogeographic Structure of Andes Virus in Humans and Rodents in Chile". Journal of Virology 83 (6): 2446–59. doi:10.1128/JVI.01057-08. PMC 2648280. PMID 19116256. 

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