Indochinese Gray Langur

Kingdom Order Family Genus Species
Animalia Primates Cercopithecidae Trachypithecus Trachypithecus crepusculus
IUCN Status: Endangered
  • Common Name: Indochinese Gray Langur
  • Taxonomy Classification Year: 1909
  • Monkey Size: 106 to 130.15 cm (42.12 to 51.24 in)
  • Skin Color(s): Light blue-grey
  • Habitat: Forest, rainforest
  • Diet: Herbivorous
  • Native Countries: Thailand, Vietnam, Myanmar

Indochinese Gray Langur Distribution

Indochinese Grey Langur Characteristics

The Indochinese gray langur[1] (Trachypithecus crepusculus) is a species of Lutung native to Southeast and East Asia.

  • The Indochinese gray langur’s body and tail are light bluish-gray, with ventral fur ranging from silver-gray to white.
  • The facial skin is dark gray with lighter pigmentation in a ring around the eyes and patches of unpigmented skin in the middle of the lower and upper lips.
  • They have a thick crest on their heads and a long tail of about 83 centimeters.
  • Males and females of this species are similar in size, weighing between 6.4 and 7.1 kilograms and having a head-to-body length of around 51 centimeters.
  • Females have a distinctive “pudenda” of white fur and pale skin in front of the callosities.

Indochinese Grey Langur Facts

  • This species was once thought to be conspecific with the Phayre’s leaf monkey (Trachypithecus phayrei). Still, a 2009 study found it to be a separate species.
  • Indochinese gray langur monkeys are pretty shy and often run away when threatened.
  • Group size can be up to 20 individuals and may consist of more than one male with several females and their young.
  • Unlike langurs that live in karst forests, which have a primarily terrestrial lifestyle, the Indochinese gray langur inhabits old-growth evergreen forests.
  • The population of this species is believed to be only about 2, 400-2, 500 adult individuals. It is threatened by habitat destruction and hunting, particularly in Vietnam and Laos.

Suggested Reading: Monkey Species List

Cite This Page

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BioExplorer.net. (2022, December 07). Indochinese Grey Langur. Bio Explorer. https://www.bioexplorer.net/animals/mammals/monkeys/indochinese-grey-langur/.
BioExplorer.net. "Indochinese Grey Langur" Bio Explorer, 07 December 2022, https://www.bioexplorer.net/animals/mammals/monkeys/indochinese-grey-langur/.
BioExplorer.net. "Indochinese Grey Langur" Bio Explorer, December 07 2022. https://www.bioexplorer.net/animals/mammals/monkeys/indochinese-grey-langur/.
Key References
  • [1]“Reproductive characteristics of wild female Phayre’s leaf monkeys – PubMed”. Accessed November 24, 2022. Link.

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