Pagai Island Macaque
Macaca pagensis (Miller, 1903)
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.

Pagai Island Macaque (Macaca pagensis), Safari Park, Cisarua, West Java, Indonesia
Sakurai Midori · CC BY 3.0 · Image sourceProvider-generated thumbnail requested at 800 pixels; no local editing Local WebP display rendition; resized without cropping.
Open encyclopedia reference
The Pagai Island macaque (Macaca pagensis), also known as the Pagai macaque or Bokkoi, is an Old World monkey endemic to the Mentawai Islands off the west coast of Sumatra. It is listed as critically endangered on the IUCN Red List due to its ever-shrinking habitat. Macaca pagensis formerly included the overall darker Siberut macaque as a subspecies, but this arrangement is polyphyletic, leading to the two being classified as separate species. Both were formerly considered subspecies of the southern pig-tailed macaque.
Wikipedia contributors, Pagai Island macaque; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T08:42:17.787311+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Macaca pagensis (Miller, 1903)
- Name authority
- (Miller, 1903)
- Common name
- Pagai Island Macaque
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Mammalia
- Order
- Primates
- Family
- Cercopithecidae
- Genus
- Macaca
- 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
- subfamilyCercopithecinae Gray, 1821
- tribePapionini
- genusMacaca Lacépède, 1799
- speciesMacaca pagensis (Miller, 1903)
Close classified relatives
These entries share the source’s genus, Macaca. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Crab-eating MacaqueMacaca fascicularis (Raffles, 1821) | CercopithecidaeChordata | Accepted speciesRecorded extant |
| Japanese MacaqueMacaca fuscata (Blyth, 1875) | CercopithecidaeChordata | Accepted speciesRecorded extant |
| Southern Pig-tailed MacaqueMacaca nemestrina (Linnaeus, 1766) | CercopithecidaeChordata | Accepted speciesRecorded extant |
| Gorontalo MacaqueMacaca nigrescens (Temminck, 1849) | CercopithecidaeChordata | Accepted speciesRecorded extant |
| Booted MacaqueMacaca ochreata (Ogilby, 1841) | CercopithecidaeChordata | Accepted speciesRecorded extant |
| Bonnet MacaqueMacaca radiata (É. Geoffroy Saint-Hilaire, 1812) | CercopithecidaeChordata | Accepted speciesRecorded extant |
| Siberut MacaqueMacaca siberu Fuentes & Olson, 1995 | CercopithecidaeChordata | Accepted speciesRecorded extant |
| Lion-tailed MacaqueMacaca silenus (Linnaeus, 1758) | CercopithecidaeChordata | Accepted speciesRecorded extant |
| Barbary MacaqueMacaca sylvanus (Linnaeus, 1758) | CercopithecidaeChordata | Accepted speciesRecorded extant |
| Milne-Edwards's MacaqueMacaca thibetana (A. Milne-Edwards, 1870) | CercopithecidaeChordata | Accepted speciesRecorded extant |
| Assam MacaqueMacaca assamensis (McClelland, 1840) | CercopithecidaeChordata | Accepted speciesRecorded extant |
| Celebes Crested MacaqueMacaca nigra (Desmarest, 1822) | 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 |
|---|---|
| Macaca pagensis mentaveensis de Beaux, 1923 de Beaux, 1923 | 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=944194 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.
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:3WWNZ. Classification follows source parent identifiers. English common names may vary by region.