The Tarai gray langur[1] (Semnopithecus hector) is an Old-World monkey and was once thought to be a subspecies of the northern plains gray langur.
- The Tarai gray langur is endemic to northern India, Nepal, and Bhutan and inhabits the foothills of the Himalayas from Rajaji National Park to southwest Bhutan.
- Tarai gray langurs have a soft light gray-brown coat all over their body and fairly uniformly colored limbs, while other gray langurs have black hands and feet.
- Unlike other langur species, Tarai gray langurs do not have a crest on their head. Instead, the hair around their face is mainly white and fluffy.
- They have bare, dark-colored faces, ears and toes, and long, thin tails.
- Their eyes are round and brown, set in a face that appears to be a permanent stare with a protruding snout and sunken cheeks. They have often seen with their limbs flexed as they rest in the treetops.
