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''Nesoryzomys'' is a
genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...
of
rodent Rodents (from Latin , 'to gnaw') are mammals of the Order (biology), order Rodentia ( ), which are characterized by a single pair of continuously growing incisors in each of the upper and Mandible, lower jaws. About 40% of all mammal specie ...
in the tribe
Oryzomyini Oryzomyini is a tribe of rodents in the subfamily Sigmodontinae of the family Cricetidae. It includes about 120 species in about thirty genera,Weksler et al., 2006, table 1 distributed from the eastern United States to the southernmost parts of S ...
of family
Cricetidae The Cricetidae are a family of rodents in the large and complex superfamily Muroidea. It includes true hamsters, voles, lemmings, muskrats, and New World rats and mice. At over 870 species, it is either the largest or second-largest family ...
,
endemic Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...
to the
Galápagos Islands The Galápagos Islands () are an archipelago of volcanic islands in the Eastern Pacific, located around the equator, west of the mainland of South America. They form the Galápagos Province of the Republic of Ecuador, with a population of sli ...
. Five species have been described, with two of them considered
extinct Extinction is the termination of an organism by the death of its Endling, last member. A taxon may become Functional extinction, functionally extinct before the death of its last member if it loses the capacity to Reproduction, reproduce and ...
. Other rodents restricted to the Galápagos include '' Megaoryzomys curioi'' and ''
Aegialomys galapagoensis ''Aegialomys'' is a genus of oryzomyini, oryzomyine rodents from the lowlands and mountains of western Peru and Ecuador, including the Galápagos Islands. The species in this genus have historically been placed in ''Oryzomys'', but according to c ...
''.


References

Castañeda-Rico, S., Johnson, S. A., Clement, S. A., Dowler, R. C., Maldonado, J. E., & Edwards, C. W. (2019). Insights into the evolutionary and demographic history of the extant endemic rodents of the Galápagos Islands. Therya, 10(3). https://doi.org/10.12933/therya-19-873 Endemic fauna of the Galápagos Islands Rodent genera Taxonomy articles created by Polbot {{Sigmodontinae-stub