Nesoryzomys swarthi

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Nesoryzomys swarthi
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Family: Cricetidae
Subfamily: Sigmodontinae
Genus: Nesoryzomys
Species: N. swarthi
Binomial name
Nesoryzomys swarthi
Orr, 1938

Nesoryzomys swarthi, also known as the Santiago nesoryzomys[2] or Santiago Galápagos mouse,[1] is a species of rodent in the genus Nesoryzomys of family Cricetidae. It is found only on Santiago in the Galápagos Islands. Its natural habitat is subtropical or tropical dry shrubland.[1]

It was considered extinct since it was last recorded in 1906, but was rediscovered in 1997. A smaller, related rice rat was also rediscovered—the Fernandina rice rat (Nesoryzomys fernandinae) on Fernandina.[3]


  1. ^ a b c Tirira et al., 2008
  2. ^ Musser and Carleton, 2005
  3. ^ Dowler, R.C., Carroll, D.S. and Edwards, C.W. 2000. Rediscovery of rodents (Genus Nesoryzomys) considered extinct in the Galápagos Islands. Oryx 34(2):109–118.

Literature cited

  • Musser, G.G. and Carleton, M.D. 2005. Superfamily Muroidea. Pp. 894–1531 in Wilson, D.E. and Reeder, D.M. (eds.). Mammal Species of the World: a taxonomic and geographic reference. 3rd ed. Baltimore: The Johns Hopkins University Press, 2 vols., 2142 pp. ISBN 978-0-8018-8221-0
  • Tirira, D., Dowler, R., Boada, C. and Weksler, M. 2008. Nesoryzomys swarthi. In IUCN. IUCN Red List of Threatened Species. Version 2009.2. <>. Downloaded on November 29, 2009.

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