Nomascus

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 are light with a distinct black tuft of crown fur, and some have distinct, light-colored cheek patches. Nomascus is found from southern China (Yunnan) to southern Vietnam, and also on Hainan Island. One species, Nomascus nasutus, has been deemed "the most critically endangered ape species in the world".[2] All species in this genus are either endangered or critically endangered.

Nomascus[1][2]
Northern white-cheeked gibbon
Nomascus leucogenys
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Primates
Suborder: Haplorhini
Infraorder: Simiiformes
Family: Hylobatidae
Genus: Nomascus
Miller, 1933
Type species
Hylobates leucogenys
Ogilby, 1840
Species

Nomascus concolor
Nomascus nasutus
Nomascus hainanus
Nomascus leucogenys
Nomascus siki
Nomascus gabriellae
Nomascus annamensis

Map showing the distribution of Nomascus species
  Nomascus leucogenys - Extant
  Nomascus leucogenys - Possibly Extant
  Nomascus leucogenys - Possibly Extinct
  Nomascus concolor - Extant
  Nomascus concolor - Possibly Extant
  Nomascus nasutus - Extant
  Nomascus siki - Extant
  Nomascus hainanus - Extant
  Nomascus annamensis - Extant
  Nomascus gabriellae - Extant

Classification

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