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

Old World monkey Old World monkey is the common English name for a family of primates known taxonomically as the Cercopithecidae (). Twenty-four genera and 138 species are recognized, making it the largest primate family. Old World monkey genera include baboons ...

from the

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

subfamily. It was formerly considered a subspecies of '' Trachypithecus germaini'' 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