Oryzomys nelsoni is an extinct rodent of María Madre Island, Nayarit, Mexico. Within the genus Oryzomys of the family Cricetidae, it may have been most closely related to the mainland species O. albiventer. Since its first description in 1898, most authors have regarded it as a distinct species, but it has also been classified as a mere subspecies of the marsh rice rat (O. palustris).
After its discovery in 1897, it has never been recorded again and it is now considered extinct; the presence of introduced black rats on María Madre may have contributed to its extinction. Oryzomys nelsoni was a large species, distinguished in particular by its long tail, robust skull, and large incisors. It was reddish to yellowish above and mostly white below. Its diet may have included plant material and small animals.
^Goldman, 1918, plate II, fig. 1
^Timm, R., Álvarez-Castañeda, S.T. & Lacher, T. 2017. Oryzomys nelsoni. The IUCN Red List of Threatened Species 2017: e.T15583A22388135. https://dx.doi.org/10.2305/IUCN.UK.2017-3.RLTS.T15583A22388135.en. Downloaded on 11 March 2021.
Oryzomysnelsoni is an extinct rodent of María Madre Island, Nayarit, Mexico. Within the genus Oryzomys of the family Cricetidae, it may have been most...
new genera were established for species previously placed in Oryzomys. Species of Oryzomys are medium-sized rats with long, coarse fur. The upperparts...
palustris were resurrected as separate species—Oryzomysnelsoni from the Marías Islands, western Mexico, and Oryzomys antillarum from Jamaica. In 2009, Michael...
rice rat Oryzomys dimidiatus - Thomas's rice rat Oryzomys gorgasi - Gorgas's rice rat Oryzomysnelsoni - Tres Marias rice rat (extinct) Oryzomys palustris...
August 2021. Timm, R.; Álvarez-Castañeda, S.T.; Lacher, T. (2017). "Oryzomysnelsoni". IUCN Red List of Threatened Species. 2017: e.T15583A22388135. doi:10...
Nicaraguan marsh rice rat, Oryzomys dimidiatus DD Nelson's rice rat, Oryzomysnelsoni (E) EX Common marsh rice rat, Oryzomys palustris LC (ssp. natator:...
Oryzomys antillarum, also known as the Jamaican rice rat, is an extinct rodent of Jamaica. A member of the genus Oryzomys within the family Cricetidae...
November 2021. Timm, R.; Álvarez-Castañeda, S.T.; Lacher, T. (2017). "Oryzomysnelsoni". IUCN Red List of Threatened Species. 2017: e.T15583A22388135. doi:10...
dimidiatus Gorgas's rice rat, Oryzomys gorgasi Oryzomysnelsoni † Marsh rice rat, Oryzomys palustris Lower California rice rat, Oryzomys peninsulae ?† Genus Pseudoryzomys...
populations may be recognized as a separate species, Oryzomys texensis. The species is part of the genus Oryzomys, which also includes several others occurring...
and the molars). Oryzomys peninsulae was first collected in 1896 and Oldfield Thomas described it in 1897 as a full species of Oryzomys. It was retained...
Oryzomys gorgasi, also known as Gorgas's oryzomys or Gorgas's rice rat, is a rodent in the genus Oryzomys of family Cricetidae. First recorded in 1967...
Oryzomys dimidiatus, also known as the Nicaraguan oryzomys, Thomas's rice rat, or the Nicaraguan rice rat, is a rodent in the family Cricetidae. It is...
included in the genus Oryzomys. Its taxonomic history has been complex, with the names Oryzomys angouya, Oryzomys buccinatus, and Oryzomys ratticeps in use...
Oryzomys albiventer is a rodent in the genus Oryzomys of family Cricetidae from interior western Mexico, in the states of Jalisco, Guanajuato, and Michoacán...
Cerradomys maracajuensis, also known as the Maracaju oryzomys, is a rodent species from South America. It is terrestrial and is found in gallery forests...
described Oryzomys wavrini as a new species of Oryzomys from Paraguay. In the next decades, it was viewed as an aberrant species of Oryzomys (then used...
A variety of parasites have been recorded from the marsh rice rat (Oryzomys palustris), a semiaquatic rodent found in the eastern and southern United States...
America. It is found in Minas Gerais, Brazil. It was formerly known as Oryzomys marinhus, but was transferred to the new genus Cerradomys in 2006. Bonvicino...
originally placed in Oryzomys and named Oryzomys polius. In 2006, a cladistic analysis found that it was not closely related to Oryzomys in the strict sense...
Hylaeamys tatei, also known as Tate's oryzomys or Tate's rice rat, is a South American rodent species of the family Cricetidae. It is known only from the...
lowland tropical rainforest. It was formerly placed in the genus Oryzomys, as Oryzomys macconnelli, but in 2006 it was reclassified as the type species...
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