Nesoryzomys darwini

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Nesoryzomys darwini

Extinct  (1930s) (IUCN 3.1)[1]
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Family: Cricetidae
Subfamily: Sigmodontinae
Genus: Nesoryzomys
N. darwini
Binomial name
Nesoryzomys darwini
Osgood, 1929

Nesoryzomys darwini, also known as Darwin's nesoryzomys[2] or Darwin's Galápagos mouse,[3] is a species of rodent in the genus Nesoryzomys that lived on Santa Cruz Island in the Galápagos Islands. It was probably nocturnal and inhabited burrows or rock crevices under bushes. Only four specimens exist, collected by Frank Wonder between 12 and 16 January 1929. This extinction may have been caused by competition and disease created by the introduction of nonnative brown and black rats.

The other Nesoryzomys known from Santa Cruz, Nesoryzomys indefessus, is also extinct there; other species of the genus survive on different islands.[4]


  1. ^ Tirira et al., 2008
  2. ^ Musser and Carleton, 2005
  3. ^ Duff and Lawson, 2004
  4. ^ Dowler et al., 2000

Literature cited[edit]

  • 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. ISSN 0030-6053
  • Duff, A. and Lawson, A. 2004. Mammals of the World: A checklist. New Haven, Connecticut: Yale University Press, 312 pp. ISBN 0-7136-6021-X
  • Flannery, T. and Schouten, P. 2001. A Gap in Nature: Discovering the World's Extinct Animals. Atlantic Monthly Press, New York. ISBN 0-87113-797-6
  • 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 darwini. In IUCN. IUCN Red List of Threatened Species. Version 2009.2. <>. Downloaded on December 8, 2009.