Phayre's leaf monkey

Phayre's leaf monkey (Trachypithecus phayrei), also known as Phayre's langur, is a species of lutung native to South and Southeast Asia, namely India, Bangladesh and Myanmar. Populations from further east are now thought to belong to other species. It is listed as Endangered on the IUCN Red List and is threatened by hunting and loss of habitat.[1] The species epithet commemorates Arthur Purves Phayre.

Phayre's leaf monkey
In Lawachara National Park
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Primates
Suborder: Haplorhini
Infraorder: Simiiformes
Family: Cercopithecidae
Genus: Trachypithecus
Species:
T. phayrei
Binomial name
Trachypithecus phayrei
(Blyth, 1847)[2]
Phayre's leaf monkey range in green (includes T. melamera)

Taxonomy

Phayre's langur is one of the most widespread members of the genus, but its actual distribution and intraspecific taxonomy remain controversial. Previously, three subspecies were recognized (T. p. crepusculus, T. p. phayrei, and T. p. shanicus)[2] but the IUCN Red List and American Society of Mammalogists now recognize T. crepusculus as a distinct species, the Indochinese grey langur.[3] A 2020 reassessment based on mitochondrial genomes proposes a further split into three separate species: T. phayrei, T. melamera (formerly T. p. shanicus), and T. popa sp. nov..[4]

Behaviour and ecology

It is mostly arboreal, and feeds on leaves of many tree species. In Tripura, India, it mainly feeds on leaves of Albizia procera, Albizzia lebbek and A. stipulata, Melocanna bambusoides, Macaranga denticulata, Callicarpa arborea, Dillenia pentagyna, Litsea sp., Mikania scandens, Gmelina arborea, Artocarpus chaplasha, Syzygium fruticosum, Ficus racemosa, Ficus hispida, Ficus indica, and F. fistulosa.[5]

References
  1. Chetry, D. & Ahmed, T. (2021). "Trachypithecus phayrei". IUCN Red List of Threatened Species. 2021: e.T175862145A175862149. Retrieved 18 November 2021.
  2. Groves, C. P. (2005). Wilson, D. E.; Reeder, D. M. (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Baltimore: Johns Hopkins University Press. p. 178. ISBN 0-801-88221-4. OCLC 62265494.
  3. Quyet, Le Khac; Nadler, Tilo; Group), L. Yongcheng (IUCN SSC Primate Specialist (2015-11-21). "IUCN Red List of Threatened Species: Trachypithecus crepusculus". IUCN Red List of Threatened Species.
  4. Roos, Christian; Helgen, Kristofer M.; et al. (2020). "Mitogenomic phylogeny of the Asian colobine genus Trachypithecus with special focus on Trachypithecus phayrei (Blyth, 1847) and description of a new species". Zoological Research. 41 (6): 656–669. doi:10.24272/j.issn.2095-8137.2020.254. PMC 7671912. PMID 33171548.
  5. Gupta, A. K. (2005). "Dietary differences between two groups of Phayre's Langur Trachypithecus phayrei in Tripura, India: Responses to food abundance and human disturbance". Journal of the Bombay Natural History Society. 102 (1): 3–9.
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