The Delacour's langur, or Delacour's lutung, (Trachypithecus delacouri) is a critically endangered species of lutung endemic to Vietnam. It is considered to be one of the world's most endangered primate species. It is named for French-American ornithologist Jean Théodore Delacour.
Read more about Delacour's Langur: Physical Description, Distribution and Habitat, Behaviour, Conservation