Hylobates albibarbis Lyon 1911
Hylobates albibarbis Lyon 1911, Proc. U. S. Natl. Mus., 40: 142.
Type Locality: Indonesia, W Borneo, Sukadana.
Vernacular Names: Bornean White-bearded Gibbon.
Distribution: SW Borneo, south of Kapuas River and W of Barito River.
Conservation: CITES – Appendix I; U.S. ESA – Endangered; IUCN – Lower Risk (nt) as H. agilis albibarbis .
Discussion: A subspecies of agilis according to Marshall and Marshall (1976), a subspecies of muelleri according to Groves (1974), a distinct species according to Groves (2001 c).