Editing Trachypithecus (section)

== Physical description ==
[[Image:Trachypithecus francoisi 3398.jpg|thumb|[[Francois' langur]] (''Trachypithecus francoisi'')]]
Lutungs have a rather slim build with a long tail. The fur color varies, depending on the species, from black and grey to orange yellow. Many species have skin designs and a brighter lower surface, the hair on the head is often compared to a hood. Their arms are very short in comparison to the feet and their thumbs are also somewhat shorter. The inner surfaces of the hands and feet are hairless so that their fur does not get caught when reaching into branches. These animals reach a length of 40 to 80&nbsp;cm and a weight of 5 to 15&nbsp;kg, with males generally larger than females. A bulge over the eyes and other details, primarily in the head, differentiate it from the [[surili]]s.