CreatureData

Cat Ba langur

Trachypithecus poliocephalus (Trouessart, 1911)

CRCritically Endangeredprimates

The cat ba langur (Trachypithecus poliocephalus) is a species in the family Cercopithecidae, order Primates. Recorded adults weigh 7.61 kg to 7.8 kg and live up to 26.3 years. Its IUCN Red List status is Critically Endangered.

Cat Ba langur (Trachypithecus poliocephalus)
Photo: ALOnIShOnETH · CC BY-SA 4.0 · Wikimedia Commons

Quick facts about the cat ba langur

Weight
7.61 kg – 7.8 kgsrc for Weight
Length
Not recorded
Lifespan
26.3 yearssrc for Lifespan
Diet
Herbivoresrc for Diet
Longest recorded lifespan
26.5 years
Main food
Not recorded
Habitat
Not recorded
Young per litter or clutch
Not recorded
Age at maturity
4 yearssrc for Age at maturity
Active
By day (diurnal)src for Active
Lifestyle
Arborealsrc for Lifestyle
Conservation status
Critically Endangered (IUCN)src for Conservation status
Countries on record
Not recorded

Where does the cat ba langur live?

Not recorded

What is the cat ba langur?

Quoted from WikipediaCC BY-SA 4.0

The Cat Ba langur (Trachypithecus poliocephalus), also known as the golden-headed langur, is a critically endangered species of langur endemic to Cát Bà Island, Vietnam. It is among the rarest primates in the world, and possibly the rarest primate in Asia, with population size estimated at less than 70 individuals.

From the Wikipedia article “Cat Ba langur” (en.wikipedia.org/w/index.php?title=Cat_Ba_langur&oldid=1371447976), by Wikipedia contributors, licensed under CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0). This block is kept separate from our own text.

Is the cat ba langur endangered?

The cat ba langur is listed as Critically Endangered on the IUCN Red List: it faces an extremely high risk of extinction in the wild.

  1. LCLeast Concern
  2. NTNear Threatened
  3. VUVulnerable
  4. ENEndangered
  5. CRCritically Endangered
  6. EWExtinct in the Wild
  7. EXExtinct

Category via Wikidata (CC0). Find the full assessment on the IUCN Red List. See all Critically Endangered species.

How is the cat ba langur classified?

  1. kingdomAnimalia
  2. phylumChordata
  3. classMammalia
  4. orderPrimates
  5. familyCercopithecidae
  6. genusTrachypithecus
  7. SpeciesTrachypithecus poliocephalus (Trouessart, 1911)

Synonyms Semnopithecus poliocephalus, Trachypithecus poliocephalus poliocephalus, Trachypithecus poliocephalus poliocephalus

Other names and names in other languages (22)
  • Cat Ba black leaf monkeyEnglish
  • Cat Ba hooded black leaf monkeyEnglish
  • Cat Ba lutungEnglish
  • Golden-headed langurEnglish
  • Golden-headed langurEnglish
  • Tonkin hooded black langurEnglish
  • White-headed langurEnglish
  • White-headed langurEnglish
  • White-headed langurEnglish
  • لنغور كات بيArabic
  • Cát Bà LangurGerman
  • Cat-Ba-LangurGerman
  • GoldkopflangurGerman
  • Langur de cabeza blancaSpanish
  • Langur Negro de la Isla de Cat BaSpanish
  • Langur de Cat BaFrench
  • Langur à tête doréeFrench
  • カットバラングールJapanese
  • CatbalangoerDutch
  • lutung jasnogłowyPolish
  • Voọc Cát BàVietnamese
  • 白頭葉猴Chinese

Catalogue of LifeWikipediaiNaturalistWikidataIUCN Red List

Relatives of the cat ba langur

Other species in the same genus Trachypithecus.

VU, Vulnerable
Capped langur (Trachypithecus pileatus)

Capped langur

Trachypithecus pileatus

Cercopithecidae

CompareCat Ba langur vs Gee's golden langurCat Ba langur vs François' langurCat Ba langur vs Phayre's leaf monkeyCat Ba langur vs Capped langur

Common questions

Answered only where our data holds the answer.

How big is the cat ba langur?

An adult cat ba langur weighs 7.61 kg – 7.8 kg, according to values recorded on Wikidata.

Is the cat ba langur endangered?

The cat ba langur is listed as Critically Endangered on the IUCN Red List, meaning it faces an extremely high risk of extinction in the wild.

How long does the cat ba langur live?

The cat ba langur has a recorded lifespan of 26.3 years.

What kind of animal is the cat ba langur?

The cat ba langur (Trachypithecus poliocephalus) belongs to the family Cercopithecidae in the order Primates.

Sources and how to cite this page

Data as of 2026-11-11. How this page is put together.

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APA

CreatureData. (2026). Cat Ba langur (Trachypithecus poliocephalus). Retrieved from https://creaturedata.com/animals/cat-ba-langur

MLA

“Cat Ba langur (Trachypithecus poliocephalus).” CreatureData, 2026, https://creaturedata.com/animals/cat-ba-langur.

BibTeX
@misc{cat_ba_langur_2026,
  title = {Cat Ba langur (Trachypithecus poliocephalus)},
  author = {{CreatureData}},
  year = {2026},
  url = {https://creaturedata.com/animals/cat-ba-langur},
  note = {Data as of 2026-11-11}
}