The Recently Extinct Plants and Animals Database

Oryzomys nelsoni Merriam, 1898:15

Nelson’s rice rat, Tres Marias Island rice rat



Taxonomy & Nomenclature

Synonym/s: Oryzomys couesi nelsoni Merriam, 1898:15


Conservation Status

Last record: 13 May 1897 or later (Carleton & Arroyo-Cabrales, 2009:121)

IUCN status: Extinct



María Madre Island, Nayarit State, México






Four specimens exist (Carleton & Arroyo-Cabrales, 2009:99).

Holotype: USNM 89200 (skin and skull, adult male)






Original scientific description:

Merriam, C. H. (1898). Mammals of the Marias Islands, off Western Mexico. Proceedings of the Biological Society of Washington 12: 13-19.


Other references:

Alvarez-Castaneda, S. T. and Mendez, L. (2003). Oryzomys nelsoni. Mammalian Species 735: 1-2.

Carleton, M. D. and Arroyo-Cabrales, J. (2009). Review of the Oryzomys couesi complex (Rodentia: Cricetidae: Sigmodontinae) in western Mexico. Bulletin of the American Museum of Natural History 331: 94–127.

Goldman, E. A. (1918). The rice rats of North America. North American Fauna 43: 1-100.

Hall, E. R. 1981. The mammals of North America. Second ed. John Wiley and Sons, New York, 1:1-600 + 90, 2:601-1181 + 90.

Hershkovitz, P. 1971. A new rice rat of the Oryzomys palustris group (Cricetinae, Muridae) from northwestern Colombia, with remarks on distribution. Journal of Mammalogy, 52:700-709.

Merriam, C. H. (1901). Synopsis of the rice rats (genus Oryzomys) of the United States and Mexico. Proceedings of the Washington Academy of Sciences 3: 273-295.

Nelson, E. W. (1899a). General description of the Tres Marias Islands, Mexico. North American Fauna 14: 7-13.

Nelson, E. W. (1899b). Mammals of the Tres Marias Islands. North American Fauna 14: 14-19.

Wilson, D. E. (1991). Mammals of the Tres Marías Islands. Bulletin of the American Museum of Natural History 206: 214-250.

Wilson, D.E. & Reeder, D.M. 2005 Mammal species of the world: a taxonomic and geographic reference. Third edition. Baltimore, MD: John Hopkins University Press.


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