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

APA7MLA8Chicago (2024, April 12). Indochinese Grey Langur. Bio Explorer. "Indochinese Grey Langur" Bio Explorer, 12 April 2024, "Indochinese Grey Langur" Bio Explorer, April 12 2024.
Key References
  • [1]“Reproductive characteristics of wild female Phayre’s leaf monkeys – PubMed”. Accessed November 24, 2022. Link.


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