NATURAL HISTORY · CATALOGUE RECORD
West Javan Langur
Trachypithecus mauritius (Griffith, 1821)
Source-backed taxonomic record
Accepted species in Catalogue of Life’s 11 September 2026 base release. This preserves the source classification and available supporting data; it is not a completed species monograph.
Open encyclopedia reference
The West Javan langur (Trachypithecus mauritius) is an Old World monkey from the Colobinae subfamily. It was formerly considered a subspecies of Trachypithecus auratus until it was elevated to a separate species by Roos and Groves in 2008. It is listed as vulnerable by the IUCN. Its range is restricted to the island of Java west of Jakarta. Its range is currently restricted to Ujung Kulon National Park, Muara Angke Wildlife Reserve and Muaragembong due to industrial development, habitat fragmentation and the disconnection of protected areas. They are known to eat the leaves and fruits of Sonneratia in mangroves.
Wikipedia contributors, West Javan langur; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T08:08:58.628297+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Trachypithecus mauritius (Griffith, 1821)
- Name authority
- (Griffith, 1821)
- Common name
- West Javan Langur
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Mammalia
- Order
- Primates
- Family
- Cercopithecidae
- Genus
- Trachypithecus
- Extinction status
- Recorded extant
Classification family tree
Nested taxonomic groups from the source. This is not a direct-ancestor chain, a dated evolutionary tree or a phylogenetic reconstruction.
- domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
- kingdomAnimalia
- phylumChordata
- subphylumVertebrata
- infraphylumGnathostomata
- parvphylumOsteichthyes
- megaclassTetrapoda
- classMammalia Linnaeus, 1758
- subclassTheria Parker & Haswell, 1897
- infraclassEutheria Gill, 1872
- orderPrimates Linnaeus, 1758
- suborderHaplorrhini Pocock, 1918
- infraorderSimiiformes Haeckel, 1866
- superfamilyCercopithecoidea Gray, 1821
- familyCercopithecidae Gray, 1821
- subfamilyColobinae Jerdon, 1867
- tribePresbytini Gray, 1825
- genusTrachypithecus Reichenbach, 1862
- speciesTrachypithecus mauritius (Griffith, 1821)
Close classified relatives
These entries share the source’s genus, Trachypithecus. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Indochinese Gray LangurTrachypithecus crepusculus (Elliot, 1909) | CercopithecidaeChordata | Accepted speciesRecorded extant |
| Delacour's LangurTrachypithecus delacouri (Osgood, 1932) | CercopithecidaeChordata | Accepted speciesRecorded extant |
| Laos LangurTrachypithecus laotum (Thomas, 1921) | CercopithecidaeChordata | Accepted speciesRecorded extant |
| Annamese LangurTrachypithecus margarita (Elliot, 1909) | CercopithecidaeChordata | Accepted speciesRecorded extant |
| Phayre's LangurTrachypithecus phayrei (Blyth, 1847) | CercopithecidaeChordata | Accepted speciesRecorded extant |
| Selangor Silvery LangurTrachypithecus selangorensis Roos, Nadler & Walter, 2008 | CercopithecidaeChordata | Accepted speciesRecorded extant |
| Hatinh LangurTrachypithecus hatinhensis (Dao, 1970) | CercopithecidaeChordata | Accepted speciesRecorded extant |
| East Javan LangurTrachypithecus auratus (É. Geoffroy Saint-Hilaire, 1812) | CercopithecidaeChordata | Accepted speciesRecorded extant |
| Tenasserim LangurTrachypithecus barbei (Blyth, 1847) | CercopithecidaeChordata | Accepted speciesRecorded extant |
| Silvered LangurTrachypithecus cristatus (Raffles, 1821) | CercopithecidaeChordata | Accepted speciesRecorded extant |
| Francois' LangurTrachypithecus francoisi (de Pousargues, 1898) | CercopithecidaeChordata | Accepted speciesRecorded extant |
| Gee's Golden LangurTrachypithecus geei Khajuria, 1956 | CercopithecidaeChordata | Accepted speciesRecorded extant |
Names & synonyms
Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.
| Recorded name | Source status |
|---|---|
| Trachypithecus auratus mauritius (Griffith, 1821) (Griffith, 1821) | synonym |
Documented distribution
Source distribution statements, not a complete range map. A listed locality is not necessarily a place of origin.
Source literature & publication evidence
References attached to this source record, including nomenclatural citations where supplied. This is a selected bibliography; abbreviated citations remain in the source’s form.
- https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=944271 Source fields: Taxon.tsv dwc:namePublishedIn, Taxon.tsv dcterms:references
Origins, evidence & remaining research
Name authority and publication references document nomenclature where the source supplies it. They do not establish evolutionary origins or the earliest fossil occurrence.
Specimen-level evidence, morphology, ecological research, phylogenetic studies, a comprehensive bibliography and a located literary passage have not yet been compiled for this record. A suitable sourced image remains to be added.
Dataset citation & attribution
This exact taxon in ChecklistBank · Catalogue of Life 2026-09-11
Catalogue of Life 2026-09-11; dataset 316321; doi:10.48580/dgz5n. https://creativecommons.org/licenses/by/4.0/ . Retrieved 5 October 2026.
Stable key: col:57SDK. Classification follows source parent identifiers. English common names may vary by region.