---
title: "Cat Ba Lutung"
description: "Trachypithecus poliocephalus — Mammals. 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."
canonical: https://animalchecklist.com/animal/cat-ba-lutung
last_updated: 2026-09-20
---

# Cat Ba Lutung

> Trachypithecus poliocephalus — Mammals. 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.

- Scientific name: *Trachypithecus poliocephalus*
- Category: `mammals` (Mammals)
- Habitats: `forest` (Forest), `jungle` (Jungle)
- iNaturalist observations: 83
- Wikidata: [Q929055](https://www.wikidata.org/wiki/Q929055)
- iNaturalist taxon: [879166](https://www.inaturalist.org/taxa/879166)

## Names

- en: Cat Ba Lutung
- de: Goldkopflangur
- es: Langur de cabeza blanca
- fr: Langur à tête dorée
- nl: Witkoplangoer

## Countries with the most observations

VN (70)

## Summary

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.

Text: Wikipedia (en), CC BY-SA 4.0 — https://en.wikipedia.org/wiki/Cat_Ba_langur

## Photo

![Cat Ba Lutung](https://animalchecklist.com/img/animals/cat-ba-lutung/medium.jpg)

Photo: Felix Puff · CC0 · inaturalist — https://www.inaturalist.org/observations/332281496

## Machine access

`GET https://animalchecklist.com/api/v1/animals/cat-ba-lutung?lang=en` — see [openapi.json](https://animalchecklist.com/openapi.json).