Only two or three forms of monkey enter the mountains, the langur, a species of Semnopithecus, ranging up to 12,000 ft.
Semnopithecus schistaceus was found by Captain Hutton at an elevation of 11,000 feet in the Himalayas, leaping actively among fir-trees whose branches were laden with snow-wreaths.
LANGUR, one of the two Hindu names (the other being hanuman) of the sacred Indian monkey scientifically known as Semnopithecus entellus, and hence sometimes called the entellus monkey.
In a zoological sense the term is extended to embrace all the monkeys of the Asiatic genus Semnopithecus, which includes a large number of species, ranging from Ceylon, India and Kashmir to southern China and the Malay countries as far east as Borneo and Sumatra.
A fairly familiar form is the simpei (Semnopithecus melalophus).