Class Mammalia Linnaeus, 1758 - mammals Order Primates Linnaeus, 1758 - primates Family Hylobatidae Gray, 1871 - gibbons Genus Hylobates Illiger, 1811 - gibbons Subgenus Bunopithecus Matthew & Granger, 1923 see Genus Bunopithecus Matthew & Granger, 1925