Nomascus

Nomascus[1][2]
Northern White-cheeked Gibbon Nomascus leucogenys
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Primates
Family:	Hylobatidae
Genus:	Nomascus Miller, 1933
Species
Nomascus concolor Nomascus gabriellae Nomascus leucogenys Nomascus nasutus

Nomascus is the second most speciose genus of gibbons (family Hylobatidae). Originally this genus was a subgenus of Hylobates, and all individuals were considered one species, Hylobates concolor. Species within Nomascus are characterized by 52 chromosomes. Some species are all black, some light with a distinct black tuft of crown fur, and some by distinct, light-colored cheek patches. Nomascus is found from southern China (Yunnan) to southern Vietnam, and also on Hainan Island. One of the genus' species, Nomascus nasutus, has been deemed "the most critically endangered ape species in the world".^[2] All of the species in this genus are endangered or critically endangered.

Classification

• Family Hylobatidae: gibbons^[1]
  • Genus Hylobates
  • Genus Hoolock
  • Genus Symphalangus
  • Genus Nomascus
    • Black Crested Gibbon, Nomascus concolor
      • Tonkin Black Crested Gibbon, Nomascus concolor concolor
      • Laotian Black Crested Gibbon, Nomascus concolor lu
      • Central Yunnan Black Crested Gibbon, Nomascus concolor jingdongensis
      • West Yunnan Black Crested Gibbon, Nomascus concolor furvogaster
    • Eastern Black Crested Gibbon, Nomascus nasutus
      • Hainan Black Crested Gibbon, Nomascus nasutus hainanus^[3]
      • Cao Vit Black Crested Gibbon, Nomascus nasutus nasutus
    • Northern White-cheeked Gibbon, Nomascus leucogenys
    • Southern White-cheeked Gibbon, Nomascus siki
    • Yellow-cheeked Gibbon, Nomascus gabriellae
    • Northern Buffed-cheeked Gibbon, Nomascus annamensis^[4]

References

1. ^ ^{a b} Groves, C. (2005). Wilson, D. E., & Reeder, D. M, eds. ed. Mammal Species of the World (3rd ed.). Baltimore: Johns Hopkins University Press. pp. 180–181. OCLC 62265494. ISBN 0-801-88221-4. http://www.bucknell.edu/msw3. 
2. ^ ^{a b} Geissmann, Thomas (December 1995). "Gibbon systematics and species identification" (PDF). International Zoo News 42: 467–501. http://gibbons.de/main/papers/pdf_files/1995gibbon_systematics_big.pdf. Retrieved 2008-08-15. 
3. ^ Thomas Geissmann. "Status reassessment of the gibbons: Results of the Asian Primate Red List Workshop 2006". Gibbon Journal Nr. 3 – April 2007=. 
4. ^ Van Ngoc Thinh, Alan R. Mootnick, Vu Ngoc Thanh, Tilo Nadler, Christian Roos. "A new species of crested gibbon, from the central Annamite mountain range". Vietnamese Journal of Primatology 2010; 1(4): 1-12. 

External links

• ARKive - images and movies of the black-crested gibbon (Nomascus concolor)
• Photos of gibbons
• Gibbon Conservation Center
• Primate Info Net Hylobates (Nomascus) leucogenys Factsheet