Uromys porculus Thomas, 1904:400

Guadalcanal rat, Guadalcanal uromys, Little pig



Taxonomy & Nomenclature

Synonym/s: Melomys porculus Thomas, 1904:400


Conservation Status


Last record: "presumably between 1886 and 1888" (Flannery, 1995:175); 1888 (Fisher & Blomberg, 2012; Lee et al., 2017; Martin et al., 2023)

IUCN RedList status: Critically Endangered (Possibly Extinct)


Only known from the holotype collected by C. M. Woodford.



Aola, Guadalcanal (northern), Solomon Islands


Biology & Ecology




Holotype: BM (Winter, 1984); NHMUK ZD 1889.4.3.8 (Roycroft et al., 2022)


Only known from the holotype collected by C. M. Woodford.






Original scientific description:

Thomas, M. (1904). On some Mammals from British New Guinea presented to the National Museum by Mr. C.A.W. Monckton, with Descriptions of other Species from the same Region. Annals and Magazine of Natural History, London 14: 397-403.


Other references:

Ellerman, J. R. (1941). The families and genera of living rodents. Vol. II. Family Muridae. British Museum (Natural History), London, 690 pp.

Fisher, Diana O. and Blomberg, Simon P. (2012). Inferring Extinction of Mammals from Sighting Records, Threats, and Biological Traits. Conservation Biology 26(1): 57-67.

Flannery, Timothy F. (1991). Emperor, king and Little pig: the three rats of Guadalcanal. Australian Natural History 23: 634-641.

Flannery, Timothy F. (1995). Mammals of the South-west Pacific and Moluccan Islands. Comstock/Cornell, Ithaca, NY, 464 pp. [p. 175]

Flannery, T. F., and S. Wickler. 1990. Quaternary murids (Rodentia: Muridae) from Buka Island, Papua New Guinea, with descriptions of two new species. Australian Mammalogy, 13:127-139.

Groves, Colin P. and Flannery, Timothy F. (1994). A revision of the genus Uromys Peters, 1867 (Muridae: Mammalia) with descriptions of two new species. Records of the Australian Museum 46(2): 145-170.

Laurie, E. M. O., and J. E. Hill. 1954. List of land mammals of New Guinea, Celebes and adjacent islands 1758-1952. British Museum (Natural History) Publications, London, 175 pp.

Leary, T., Wright, D., Hamilton, S., Singadan, R., Menzies, J., Bonaccorso, F., Helgen, K. and Seri, L. (2008). Uromys porculus. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.1. ( Downloaded on 30 July 2013.

Lee, T. E., Fisher, D. O., Blomberg, S. P. and Wintle, B. A. (2017). Extinct or still out there? Disentangling influences on extinction and rediscovery helps to clarify the fate of species on the edge. Global Change Biology 23(2): 621-634.

Martin, Thomas E., Bennett, Gareth C., Fairbairn, Andrew J. and Mooers, A. Ø. (2023). ‘Lost’ taxa and their conservation implications. Animal Conservation 26(1): 14-24. [Appendix S2 (1617 taxa not seen >10 years); Appendix S3 (562 taxa not seen >50 years)]

Roycroft, Emily et al. (2022). New Guinea uplift opens ecological opportunity across a continent. Current Biology.

Rümmler, H. (1938). Die Systematik und Verbreitung der Muriden Neuguineas. Mitteilungen aus dem Zoologische Museum in Berlin, 23: 1-297.

Tate, G. H. H. (1951). Results of the Archbold Expeditions. No. 65. The rodents of Australia and New Guinea. Bulletin of the American Museum of Natural History, 97:183-430.

Winter, J. W. (1984). The Thornton Peak Melomys, [i]Melomys hadrourus[/i] (Rodentia : Muridae): a new rainforest species from northeastern Queensland, Australia. Memoirs of the Queensland Museum 21(2): 519-539. [automatic download]


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