Bornean white-bearded gibbon (Hylobates albibarbis) Nederlands: Negatief. Een grijze gibbon (hylobates cinereus albibarbis), Borneo
Date circa 1930
Source Tropenmuseum  
Collectie Stichting Nationaal Museum van Wereldculturen
Author Unknown
Source: https://commons.wikimedia.org/wiki/File:COLLECTIE_TROPENMUSEUM_Een_grijze_gibbon_(hylobates_cinereus_albibarbis)_Borneo_TMnr_10006732.jpg
The Bornean white-bearded gibbon (Hylobates albibarbis), also known as the Bornean agile gibbon or southern gibbon, is an endangered species of gibbon endemic to southern Borneo, between the Kapuas and Barito rivers.