Nomascus

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".^[2]

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^[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 hainanus^[3]
  - 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

^ ^a ^b 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.
^ ^a ^b Geissmann, Thomas (December 1995). "Gibbon systematics and species identification" (PDF). International Zoo News. 42: 467–501. Retrieved 2008-08-15.
^ Thomas Geissmann (April 2007). "Status reassessment of the gibbons: Results of the Asian Primate Red List Workshop 2006". Gibbon Journal (3).
^ 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

[MSW3-1] 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.

[Geissmann-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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v t e Extant species of family Hylobatidae (Gibbons)
Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Primates Suborder: Haplorhini
Hylobates	Lar gibbon (H. lar) Agile gibbon (H. agilis) Bornean white-bearded gibbon (H. albibarbis) Western grey gibbon (H. abbotti) Eastern grey gibbon (H. funereus) Müller's gibbon (H. muelleri) Silvery gibbon (H. moloch) Pileated gibbon (H. pileatus) Kloss's gibbon (H. klossii)
Hoolock	Western hoolock gibbon (H. hoolock) Eastern hoolock gibbon (H. leuconedys) Skywalker hoolock gibbon (H. tianxing)
Symphalangus	Siamang (S. syndactylus)
Nomascus	Northern buffed-cheeked gibbon (N. annamensis) Black crested gibbon (N. concolor) Eastern black crested gibbon (N. nasutus) Hainan black crested gibbon (N. hainanus) Northern white-cheeked gibbon (N. leucogenys) Yellow-cheeked gibbon (N. gabriellae) Southern white-cheeked gibbon (N. siki)
Category