Galapagos Species Database

The Galapagos Species Database shares the information about the species from our Natural History Collections.

Nesoryzomys swarthi Orr, 1938

(Rata) Nesoryzomys de Santiago, Santiago Nesoryzomys (Rice Rat)

Taxonomy

Domain
Eukaryota

Kingdom
Animalia

Phylum
Chordata

Class
Mammalia

Order
Rodentia

Family
Cricetidae

Genus
Nesoryzomys

Species
swarthi

Taxon category: Accepted

Origin: Endemic

Status

Vulnerable

Distribution

Distribution: Present in Santiago Island. First report was in 1906.

References

  • Dowler R.C. Carroll, D.S. & Edwards, C.W. (2000) Rediscovery of rodents (Genus Nesoryzomys) considered extint in the Galapagos Island. Oryx 34(2): 109-117.
  • Harris, D.B. MacDonald, D.W. (2007) Population ecology of the endemic rodent Nesoryzomys swarthi in the tropical desert of the Galapagos Islands. Journal of Mammalogy 88 (1): 208-219.
  • Harris, D.B. (2006) Introduced black rats abd endemic Galapagos rice rats: competition, coexistence and conservation. A thesis submitted for the degree of Doctor of Philosophy. Linacre College, Oxford.
  • IUCN (2015) The IUCN Red List of Threatened Species. Version 2015-4. <www.iucnredlist.org>. Downloaded on 20 November 2015.
  • Jiménez-Uzcátegui, G. Milstead, B., Márquez, C., Zabala, J., Buitrón, P., Llerena, A., et al. (2007) Galapagos vertebrates: endangered status and conservation actions. Galapagos Report 2006–2007. Charles Darwin Foundation, Puerto Ayora, p. 104–110.
  • Steadman, D. W. Stafford, T. W., Donahue, D. J. & Jull, A. J. T. (1991) Chronology of Holocene vertebrate extinction in the Galápagos Islands. Quaternary Research 36(1): 126-133.

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This page should be cited as follows:

"Galapagos Species Database, Nesoryzomys swarthi", dataZone. Charles Darwin Foundation, https://datazone.darwinfoundation.org/en/checklist/?species=5236. Accessed 9 June 2026.