A prodigiously long tail, beetling eyebrows with long black hairs, black ears, face, feet and hands, and a general greyish-brown colour of the fur are the distinctive characteristics of the langur.
It contains many valued species of animals, including the golden langur, a slender long-tailed monkey that is rare elsewhere in the world.
Only two or three forms of monkey enter the mountains, the langur, a species of Semnopithecus, ranging up to 12,000 ft.