Distribution of Hylobates and its species (note: Bornean population formerly included in H. agilis is now generally considered a separate species, H. albibarbis)
The genusHylobates is one of the four genera of gibbons. Its name means "forest walker", from the Greek h?l? (, "forest") and bates (, "one who treads").
It was once considered the only genus, but recently its subgenera (Hoolock [formerly Bunopithecus], Nomascus, and Symphalangus) have been elevated to the genus level.Hylobates remains the most speciose and widespread of gibbon genera, ranging from southern China (Yunnan) to western and central Java.
Individuals within this genus are characterized by 44 chromosomes and often have a ring of white fur around their faces.