Proboscis Monkey (Nasalis larvatus), a native of Borneo, one of the dog-like (Cynomorph) Catarrhines, nearly allied to the genus Semnopithecus. The nose is very long, especially in the old males, and is mobile and retractile like a proboscis. In the young monkeys it is short and blunt. There are bushy whiskers, which, with the long hair on the back of the head, encircle the neck. The colours—brown, red, yellow, and gray—are bright. The adult males are about 3 feet in height; the body is lank, and the tail is very long. In habit these animals are arboreal and gregarious.