The East Javan langur Trachypithecus auratus, also known as the ebony lutung, Javan langur or Javan lutung, is an Old World monkey from the Colobinae subfamily. It is most commonly glossy black with a brownish tinge to its legs, sides, and `sideburns`. It is found on the island of Java, as well as on several of the surrounding Indonesian islands. The nominate subspecies Trachypithecus auratus auratus on the right has a rare morph that does not lose its juvenile coloration when it matures, instead the coloration darkens slightly, with yellow tinges on its sides, limbs, and around its ears, and a black tinge on its back. These are part of an enclosure / exhibit in the Singapore Zoo.
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