黑冠長臂猿屬

黑冠長臂猿屬（學名：Nomascus）是長臂猿科下的一屬。本屬原為長臂猿屬的一個亞屬，而現時本屬各物種在當時都被認為只是黑冠長臂猿（Nomascus concolor）。 現時本屬包括四種長臂猿。體色一般為黑色，兩頰為白色或黃色。主要分布在中國雲南到越南南部，海南島上也有分布。東部黑冠長臂猿是世界上最為瀕危的猿類。

黑冠長臂猿屬
Nomascus leucogenys
科學分類
界：	動物界 Animalia
門：	脊索動物門 Chordata
綱：	哺乳綱 Mammalia
目：	靈長目 Primates
科：	長臂猿科 Hylobatidae
屬：	黑冠長臂猿屬 Nomascus Miller, 1933
模式種
Hylobates leucogenys Ogilby（英語：William Ogilby）, 1840
物種
黑冠長臂猿 東部黑冠長臂猿 海南長臂猿 北方白頰長臂猿 Nomascus siki（英語：Nomascus siki） 紅頰黑猿 Nomascus annamensis（英語：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

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 特有現象 from 中國南方與北方 (雲南省) to southern 越南, and can also be found on 海南省. Every species within this genus are either 瀕危物種 or 極危物種; the Eastern black crested gibbon (Nomascus nasutus) has been deemed "the most-critically endangered ape species in the world".^[1]

Extant species

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Classification

Foot（英語：Pes (anatomy)） of a captive gibbon (紅頰黑猿)

• Family 長臂猿: gibbons^[2]
  • Genus 長臂猿屬
  • Genus 白眉長臂猿
  • Genus 合趾猿
  • Genus Nomascus
    • Black crested gibbon, Nomascus concolor
      • Tonkin black crested gibbon（英語：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]