Eastern black crested gibbon

Eastern black crested gibbon
Nomascus nasutus hainanus
Conservation status
Critically Endangered (IUCN 3.1)[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Primates
Family:	Hylobatidae
Genus:	Nomascus
Species:	N. nasutus
Binomial name
Nomascus nasutus (Kunkel d'Herculais, 1884)
Subspecies
Nomascus nasutus nasutus Nomascus nasutus hainanus
Eastern Black Crested Gibbon range (excluding Hainan Black Crested Gibbon (Nomascus nasutus hainanus) range)
Hainan Black Crested Gibbon range

The eastern black crested gibbon (Nomascus nasutus) is a species of gibbon that was once widespread in China and Vietnam. There are two subspecies.

It became extinct on the continent in the 1950s; and now roughly only 20 gibbons of the subspecies Nomascus nasutus hainanus (Hainan black crested gibbon) survive on Hainan Island and around 26 individuals of the subspecies Nomascus nasutus nasutus (Cao Vit black crested gibbon) were rediscovered in 2002 in Trùng Khánh District, Cao Bằng Province, in northeast Vietnam, after last being seen in the 1960s.^[2][3]

The Eastern black crested gibbon is the rarest and most critically endangered primate in the world. This status has resulted from deforestation of its habitat, encroachment, and poaching. It is considered to be one of "The World's 25 Most Endangered Primates."^[4]

References

1. ^ Bleisch, B. & Geissmann, T. (2008). Nomascus nasutus. In: IUCN 2008. IUCN Red List of Threatened Species. Downloaded on 4 January 2009.
2. ^ Mootnick, A. R., Rylands, A. B. and Konstant, W. R. 2005. Hainan Black-crested Gibbon, Nomascus nasutus hainanus (Thomas, 1892). In: Primates in Peril: The World's 25 Most Endangered Primates 2004-2006, R. A. Mittermeier, C. Valladares-Pádua, A. B. Rylands, A. A. Eudey, T. M. Butynski, J. U. Ganzhorn, R. Kormos, J. M. Aguiar and S. Walker (eds.), pp.30-31. Report to IUCN/SSC Primate Specialist Group (PSG), International Primatological Society (IPS) and Conservation International (CI), Washington, DC.
3. ^ "Scientists warn little known gibbons face immediate extinction". Mongabay.com. September 19, 2010. http://news.mongabay.com/2010/0919-hance_gibbons.html. Retrieved September 27, 2010. 
4. ^ Mittermeier, R.A.; Wallis, J.; Rylands, A.B. et al., eds (2009) (PDF). Primates in Peril: The World's 25 Most Endangered Primates 2008–2010. Illustrated by S.D. Nash. Arlington, VA.: IUCN/SSC Primate Specialist Group (PSG), International Primatological Society (IPS), and Conservation International (CI). pp. 1–92. ISBN 978-1-934151-34-1. http://www.primate-sg.org/PDF/Primates.in.Peril.2008-2010.pdf.