Tufted Gray Langurs Sri Lanka In continuation to my earlier post on the Birds of Sri Lanka, this post has pictures of Monkeys of Sri Lanka. There are some species of monkeys that are endemic to Sri Lanka. The Purple-faced Langur (also known as the purple-faced leaf monkey), and the Toque Macaque are endemic to Sri Lanka, and was spotted by Soma. She also spotted the Tufted Gray Langur,