The Annamese langur (''Trachypithecus margarita'') is an

Old World monkey Old World monkeys are primates in the family Cercopithecidae (). Twenty-four genera and 138 species are recognized, making it the largest primate family. Old World monkey genera include baboons (genus '' Papio''), red colobus (genus '' Piliocolob ...

from the

Colobinae The Colobinae or leaf-eating monkeys are a family (biology), subfamily of the Old World monkey family that includes 61 species in 11 genus, genera, including the black-and-white colobus, the large-nosed proboscis monkey, and the gray langurs. So ...

subfamily. It was formerly considered a subspecies of ''

Trachypithecus germaini ''Trachypithecus'' (derived from Greek , meaning "rough" and , meaning "monkey") is a genus of Old World monkeys containing species known as lutungs, langurs, or leaf monkeys. Their range is much of Southeast Asia (northeast India, Vietnam, sou ...

'' until it was elevated to a separate species by Roos and Groves in 2008. Its fur is lighter in colour than that of ''Trachypithecus germaini''. Its range includes parts of Cambodia, Laos and Vietnam.

References

{{taxonbar, from=Q20181763 Trachypithecus Mammals of Cambodia Mammals of Laos Mammals of Vietnam Mammals described in 1909 Taxa named by Daniel Giraud Elliot