Class [Mammalia] Linnaeus, 1758 - mammals Order Primates Linnaeus, 1758 - primates Family Hylobatidae Gray, 1871 - gibbons Genus Hylobates Illiger, 1811 - gibbons Hylobates hoolock (Harlan, 1834) - Hoolock gibbon see Bunopithecus hoolock (Harlan, 1834)