Galapagos Species Database
The Galapagos Species Database shares the information about the species from our Natural History Collections.
Nesoryzomys indefessus
Raton de Santa Cruz, Indefatigable Galapagos mouse
Domain
Eukaryota
Kingdom
Animalia
Phylum
Chordata
Class
Mammalia
Order
Rodentia
Family
Cricetidae
Genus
Nesoryzomys
Species
indefessus
Taxon category: Accepted
Origin: Endemic
Distribution: It was present in Santa Cruz and Baltra Islands. The last collected were in 1934 and 1929 respectively. First report were in 1897 and 1898 respectively.
- 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. 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.
- Snell, H.L. Tye, A., Causton, C.E. & Bensted-Smith, R. (1999) Estado y amenazas de la biodiversidad terretre de Galápagos. Visión para la biodiversidad de las islas Galápagos. Fundación Charles Darwin para las islas Galápagos y WWF. Puerto Ayora, Galápagos.
- 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.
- 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.
- IUCN (2015) The IUCN Red List of Threatened Species. Version 2015-4. <www.iucnredlist.org>. Downloaded on 20 November 2015.
You are welcome to download and use the information found in this page, acknowledging its source.
This page should be cited as follows:
"Galapagos Species Database, Nesoryzomys indefessus", dataZone. Charles Darwin Foundation, https://datazone.darwinfoundation.org/en/checklist/?species=5231. Accessed 9 June 2025.