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Nomascus
Northern white-cheeked gibbon Nomascus leucogenys
Scientific 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

Nomascus is the second-most speciose genus of the gibbon family, Hylobatidae. Originally, this genus was a subgenus of Hylobates, with all individuals considered to be one species, H. concolor.

Species within Nomascus are characterized by 52 chromosomes. Some species are all-black, some are a lighter beige or peach hue, with a distinct black tuft of crown fur, while others have notable, light-colored cheek “patches”. Nomascus is endemic from southern China (Yunnan) to southern Vietnam, and can also be found on Hainan. Every species within this genus are either endangered or critically endangered; the Eastern black crested gibbon (Nomascus nasutus) has been deemed "the most-critically endangered ape species in the world".

Extant species

Genus Nomascus – Miller, 1933 – seven species

Common name	Scientific name and subspecies	Range	Size and ecology	IUCN status and estimated population
Black crested gibbon	Nomascus concolor (Harlan, 1826) Four subspecies 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	China, Laos, and northern Vietnam	Size: Habitat: Diet:	CR
Eastern black crested gibbon	Nomascus nasutus (Künckel d'Herculais, 1884)	northeast Vietnam	Size: Habitat: Diet:	CR
Hainan black crested gibbon	Nomascus hainanus (Thomas, 1892)	Hainan Island, China.	Size: Habitat: Diet:	CR
Northern white-cheeked gibbon	Nomascus leucogenys (Ogilby, 1840)	northern Vietnam and northern Laos	Size: Habitat: Diet:	CR
Southern white-cheeked gibbon	Nomascus siki (Delacour, 1951)	Vietnam and Laos.	Size: Habitat: Diet:	EN
Yellow-cheeked gibbon	Nomascus gabriellae (Thomas, 1909)	Vietnam, Laos, and Cambodia	Size: Habitat: Diet:	EN
Northern buffed-cheeked gibbon	Nomascus annamensis Thinh et al., 2010	Vietnam, Cambodia, and Laos.	Size: Habitat: Diet:	EN

Classification

• Family Hylobatidae: gibbons
  • 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 hainanus
    • Northern white-cheeked gibbon, Nomascus leucogenys
    • Southern white-cheeked gibbon, Nomascus siki
    • Yellow-cheeked gibbon, Nomascus gabriellae
    • Northern buffed-cheeked gibbon, Nomascus annamensis

References

1. Geissmann, Thomas (December 1995). "Gibbon systematics and species identification" (PDF). International Zoo News. 42: 467–501. Retrieved 2008-08-15.
2. 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.
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.

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

v t e Haplorhini
Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Primates
Haplorhini †"Omomyidae" Altanius? Altiatlasius? Bownomomys Kohatius Microchoerinae Indusomys Melaneremia Microchoerus Nannopithex Necrolemur Paraloris Pseudoloris Quercyloris Vectipithex "Anaptomorphinae" Absarokius Anaptomorphus Anemorhysis Arapahovius Aycrossia Chlororhysis Gazinius Pseudotetonius Sphacorhysis Strigorhysis Tatmanius Teilhardina Tetonius Tetonoides Trogolemur Walshina "Omomyinae" Ageitodendron Asiomomys Brontomomys Chipetaia Chumashius Diablomomys Dyseolemur Ekwiiyemakius Gunnelltarsius Hemiacodon Jemezius Loveina Macrotarsius Nesomomys Omomys Ourayia Rooneyia Shoshonius Steinius Stockia Uintanius Utahia Washakius Wyomomys Yaquius Tarkadectinae Tarka Tarkadectes Tarkops Tarsiiformes †Archicebus †Afrotarsiidae? †"Omomyidae"? Tarsiidae Carlito Cephalopachus †Hesperotarsius †Oligotarsius Tarsius †Xanthorhysis? Simiiformes see below↓
Simiiformes Simiiformes †Altiatlasius? †Amamria †Aseanpithecus †Nosmips? †Phileosimias? †Afrotarsiidae? Afrasia Afrotarsius †Eosimiidae Bahinia Eosimias Phenacopithecus †Amphipithecidae Amphipithecus Bugtipithecus? Ganlea Krabia Myanmarpithecus Pondaungia Siamopithecus †Parapithecoidea Arsinoea Biretia Proteopithecidae Proteopithecus Serapia Parapithecidae Abuqatrania Apidium Parapithecus Qatrania Ucayalipithecus Platyrrhini †Parvimico †Perupithecus †Szalatavus †Canaanimico †Branisella †Lagonimico Aotidae Aotus †Tremacebus Pitheciidae †Antillothrix Cacajao Callicebus †Carlocebus †Cebupithecia Cheracebus Chiropotes †Homunculus †Insulacebus †Mazzonicebus †Miocallicebus †Nuciruptor Pithecia Plecturocebus †Proteropithecia †Soriacebus †Xenothrix Atelidae Alouatta Ateles Brachyteles †Caipora †Cartelles †Chilecebus Lagothrix †Mohanamico Oreonax †Paralouatta †Protopithecus †Solimoea †Stirtonia Cebidae †Acrecebus Cebus †Dolichocebus †Killikaike †Panamacebus †Patasola Saimiri Sapajus Callitrichidae Callimico Callithrix Cebuella Leontocebus Leontopithecus Mico †Micodon Saguinus Catarrhini see below↓
Catarrhini Catarrhini †Micropithecus †Saadanius †Oligopithecidae Catopithecus Oligopithecus Talahpithecus †Propliopithecidae Aegyptopithecus Propliopithecus †Pliopithecoidea Krishnapithecus Paidopithex †Kapi Pliopithecidae Epipliopithecus Pliopithecus Dionysopithecidae Dionysopithecus Platodontopithecus Crouzeliidae Anapithecus Barberapithecus Crouzelia Egarapithecus Fanchangia Laccopithecus Plesiopliopithecus Pliobates Cercopithecoidea †Alophe †Victoriapithecidae Noropithecus Nsungwepithecus? Prohylobates? Victoriapithecus Zaltanpithecus Colobinae †Cercopithecoides Colobus †Dolichopithecus †Kuseracolobus †Libypithecus †Mesopithecus †Microcolobus Nasalis †Paracolobus †Parapresbytis Piliocolobus Presbytis Procolobus Pygathrix †Rhinocolobus Rhinopithecus †Sawecolobus Semnopithecus Simias Trachypithecus Cercopithecinae Cercopithecini Allenopithecus Allochrocebus Cercopithecus Chlorocebus Erythrocebus Miopithecus †Nanopithecus Papionini Cercocebus †Dinopithecus †Gorgopithecus Lophocebus Macaca Mandrillus Papio †Paradolichopithecus †Parapapio †Pliopapio †Procercocebus †Procynocephalus Rungwecebus †Soromandrillus Theropithecus Hominoidea see below↓
Hominoidea Hominoidea †Afropithecus †Ekembo †Equatorius †Griphopithecus †Kamoyapithecus? †Kenyapithecus †Morotopithecus †Nacholapithecus †Otavipithecus †Proconsul †Samburupithecus †Dendropithecidae Dendropithecus Micropithecus? Nyanzapithecus Oreopithecus? Rangwapithecus Rukwapithecus Simiolus Turkanapithecus Hylobatidae †Bunopithecus Hoolock Hylobates †Junzi Nomascus Symphalangus †Yuanmoupithecus Hominidae †Buronius †Graecopithecus †Nakalipithecus †Ouranopithecus Ponginae †Ankarapithecus †Gigantopithecus †Indopithecus †Khoratpithecus †Lufengpithecus †Meganthropus Pongo †Sivapithecus Homininae †Dryopithecini Anoiapithecus Danuvius Dryopithecus Hispanopithecus? Pierolapithecus? Rudapithecus Gorillini †Chororapithecus? Gorilla †Nakalipithecus? Hominini Pan Hominina †Ardipithecus? †Australopithecus †Graecopithecus? Homo †Kenyanthropus †Orrorin? †Sahelanthropus? †Paranthropus

• Nomascus
• Gibbons
• Mammals of Southeast Asia
• Primate genera
• Taxa named by Gerrit Smith Miller Jr.
• Taxa described in 1933