Oecomys trinitatis


Taxonomy [top]

Kingdom Phylum Class Order Family

Scientific Name: Oecomys trinitatis
Species Authority: (J.A. Allen & Chapman, 1893)
Common Name(s):
English Long-furred Rice Rat, Trinidad Arboreal Rice Rat
Taxonomic Notes: The species is in need of revision, likely represents a species complex (M. Weksler pers. comm.).

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2008
Date Assessed: 2008-06-30
Assessor(s): Costa, L., Bonvicino, C., Weksler, M. & Emmons, L.
Reviewer(s): McKnight, M. (Global Mammal Assessment Team) & Amori, G. (Small Nonvolant Mammal Red List Authority)
Listed as Least Concern in view of its wide distribution, presumed large population, occurrence in a number of protected areas, lack of major threats, and because it is unlikely to be in decline.

Geographic Range [top]

Range Description: This species occurs in tropical rainforests from south-western Costa Rica to central Brazil, including Guianas, Trinidad and Tobago; east Andean slopes of west-central Colombia to south-central Peru and into Bolivia (Musser and Carleton 2005).
Bolivia, Plurinational States of; Brazil; Colombia; Costa Rica; Ecuador; French Guiana; Guyana; Panama; Peru; Suriname; Trinidad and Tobago; Venezuela, Bolivarian Republic of
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: This rodent apparently is uncommon, but widely distributed in Rio Jurua (Patton et al. 2000). In Central America it is uncommon (Reid 1997), and in Venezuela it is rare (Lord 1999).
Population Trend: Stable

Habitat and Ecology [top]

Habitat and Ecology: This arboreal species is present in tropical rainforests (Musser and Carleton 2005), including terra firme and varzea forest (Eisenberg and Redford 1999). Its nests are located near the ground (Hershkovitz 1960) and its litter size ranges from two to four young.
Systems: Terrestrial

Threats [top]

Major Threat(s): There are no major threats known.

Conservation Actions [top]

Conservation Actions: This species occurs in several protected areas throughout the range. This species needs further taxonomic research.

Bibliography [top]

Eisenberg, J.F. and Redford, K.H. 1999. Mammals of the Neotropics: The Central Neotropics. The University of Chicago Press, Chicago, USA.

Hershkovitz, P. 1960. Mammals of northern Colombia, preliminary report No. 8: Arboreal rice rats, a systematic revision of the subgenus Oecomys, genus Oryzomys. Proceedings of the United States National Museum 110: 513-568.

Lord, R. 2000. Wild mammals of Venezuela. Armitano Editores, C. A., Caracas, Venezuela.

Musser, G. G. and Carleton, M. D. 2005. Superfamily Muroidea. In: D. E. Wilson and D. A. Reeder (eds), Mammal Species of the World: a geographic and taxonomic reference, pp. 894-1531. The John Hopkins University Press, Baltimore, USA.

Patton, J. L., da Silva, M. A. and Malcolm, J. R. 2000. Mammals of the Rio Jurua and the Evolutionary and Ecological Diversification of Amazonia. Bulletin of the American Museum of Natural History 244: 1-306.

Reid, F. 1997. A field guide to the mammals of Central America and southeast Mexico. Oxford University Press, New York, USA.

Citation: Costa, L., Bonvicino, C., Weksler, M. & Emmons, L. 2008. Oecomys trinitatis. The IUCN Red List of Threatened Species. Version 2014.3. <>. Downloaded on 29 March 2015.
Disclaimer: To make use of this information, please check the <Terms of Use>.
Feedback: If you see any errors or have any questions or suggestions on what is shown on this page, please provide us with feedback so that we can correct or extend the information provided