The Shan State langur (''Trachypithecus phayrei shanicus'') is a subspecies of

primate Primates is an order (biology), order of mammals, which is further divided into the Strepsirrhini, strepsirrhines, which include lemurs, galagos, and Lorisidae, lorisids; and the Haplorhini, haplorhines, which include Tarsiiformes, tarsiers a ...

in the family

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

. It is found in eastern

Myanmar Myanmar, officially the Republic of the Union of Myanmar; and also referred to as Burma (the official English name until 1989), is a country in northwest Southeast Asia. It is the largest country by area in Mainland Southeast Asia and has ...

and

southwest China Southwestern China () is a region in the People's Republic of China. It consists of five provincial administrative regions, namely Chongqing, Sichuan, Guizhou, Yunnan, and Xizang. Geography Southwestern China is a rugged and mountainous region, ...

. While it is typically considered a

subspecies In Taxonomy (biology), biological classification, subspecies (: subspecies) is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (Morphology (biology), morpholog ...

or even a synonym of

Phayre's leaf monkey Phayre's leaf monkey (''Trachypithecus phayrei''), also known as Phayre's langur, is a species of Old World monkey native to South Asia and Southeast Asia, namely India, Bangladesh, and Myanmar. Populations from further east are now thought to b ...

(''T. phayrei''), it is sometimes listed as a full species.

References

Trachypithecus Mammals of Myanmar Mammals of China Primates of Southeast Asia Taxa named by Daniel Giraud Elliot Taxobox binomials not recognized by IUCN Mammals described in 1909 {{oldworld-monkey-stub