Northern white | 台北市立動物園資訊網

Species of Old World monkey

The northern white-cheeked gibbon (Nomascus leucogenys) is a Critically Endangered species of gibbon native to South East Asia.

It is closely related to the southern white-cheeked gibbon (Nomascus siki), with which it was previously considered conspecific.[3] The females of the two species are virtually indistinguishable in appearance.[4]

The genome of N. leucogenys was sequenced and published in 2011.[5]

Northern white-cheeked gibbons are sexually dimorphic, with males and females having different colourations and the former also being slightly larger. Males have black hair over their entire bodies, except for distinct white patches on their cheeks, as well as a prominent tuft of hair on the crown of head, and a gular sac. Females are reddish-tan in colour, lack a cranial tuft, and have a crest of black or dark ...