The Lion Tailed Macaque (Macaca silenus) is endemic to the Western Ghats of India and is classified as endangered by the IUCN due to habitat fragmentation and small population size. Lemurs are native to Madagascar, not India. The Slender Loris is found in India but is listed as near threatened, not endangered. The Golden Langur is endangered but found in Assam and Bhutan, not as critically threatened as the Lion Tailed Macaque.