# Cat Ba langur (*Trachypithecus poliocephalus*)

Canonical page: https://creaturedata.com/animals/cat-ba-langur  
Data as of: 2026-11-11

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.

## Quick facts

| Fact | Value |
|---|---|
| Weight | 7.61 kg – 7.8 kg |
| Length | Not recorded |
| Lifespan | 26.3 years |
| Diet | Herbivore |
| Longest recorded lifespan | 26.5 years |
| Main food | Not recorded |
| Habitat | Not recorded |
| Young per litter or clutch | Not recorded |
| Age at maturity | 4 years |
| Active | By day (diurnal) |
| Lifestyle | Arboreal |
| Conservation status | Critically Endangered (IUCN) |
| Countries on record | Not recorded |

## Classification

- kingdom: Animalia
- phylum: Chordata
- class: Mammalia
- order: Primates
- family: Cercopithecidae
- genus: Trachypithecus
- species: *Trachypithecus poliocephalus* (Trouessart, 1911)

Synonyms: *Semnopithecus poliocephalus*, *Trachypithecus poliocephalus poliocephalus*, *Trachypithecus poliocephalus poliocephalus*

## Common questions

### 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

- [An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles](https://doi.org/10.6084/m9.figshare.3563457.v1), CC0 1.0, E096-269. Myhrvold, N.P., Baldridge, E., Chan, B., Sivam, D., Freeman, D.L. & Ernest, S.K.M. (2015) An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96: 3109. https://doi.org/10.1890/15-0846R.1. Data: https://doi.org/10.6084/m9.figshare.3563457.v1
- [Catalogue of Life eXtended Release](https://www.checklistbank.org/dataset/316691), CC BY 4.0, 2026-10-16 XR. Catalogue of Life (2026). Catalogue of Life eXtended Release, version 2026-10-16 XR. Catalogue of Life Foundation, Amsterdam, Netherlands. https://doi.org/10.48580/dgzlf
- [Wikimedia Commons](https://commons.wikimedia.org), per file (CC0 / public domain / CC BY green, CC BY-SA amber, anything else not displayed), 2026-11-11. Wikimedia Commons contributors. Wikimedia Commons. https://commons.wikimedia.org (each file credited to its author under its own licence).
- [EltonTraits 1.0: species-level foraging attributes of the world's birds and mammals](https://doi.org/10.6084/m9.figshare.3559887.v1), CC0 1.0, 1.0. Wilman, H., Belmaker, J., Simpson, J., de la Rosa, C., Rivadeneira, M.M. & Jetz, W. (2014) EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95: 2027. https://doi.org/10.1890/13-1917.1. Data: https://doi.org/10.6084/m9.figshare.3559887.v1
- [Wikidata](https://www.wikidata.org), CC0 1.0, 2026-11-11. Wikidata contributors. Wikidata. https://www.wikidata.org (data retrieved via the Wikidata Query Service).
- [Wikipedia (English)](https://en.wikipedia.org), CC BY-SA 4.0, 2026-11-11. Wikipedia contributors. Wikipedia, The Free Encyclopedia. https://en.wikipedia.org (text under CC BY-SA 4.0; each block names its article and revision).

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