NATURAL HISTORY · CATALOGUE RECORD
Aracá Uakari
Cacajao ayresi Boubli, Silva, Amado, Hrbek, Pontual & Farias, 2008
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 Aracá uakari (Cacajao ayresi), also known as the Ayres black uakari, is a newly described species of monkey from the northwest Brazilian Amazon. It was found by Jean-Phillipe Boubli of the University of Auckland after following native Yanomamo Indians on their hunts along the Rio Aracá, a northern tributary of the Rio Negro. It was subsequently described in 2008 together with the more westerly distributed Neblina uakari. Until then, the black-headed uakari was the only species of mainly black uakari that was recognized. Stephen F. Ferrari et al proposed treating the Aracá uakari as a subspecies of the black-headed uakari rather than as a separate species. This monkey is named after Brazilian biologist José Márcio Ayres, formerly a senior zoologist for the Wildlife Conservation Society. José Márcio Ayres, who died in 2003, pioneered studies in uakaris and played a fundamental role in the creation of the Mamirauá Sustainable Development Reserve, which is of great importance for the white uakari.
Wikipedia contributors, Aracá uakari; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T02:19:27.306645+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Cacajao ayresi Boubli, Silva, Amado, Hrbek, Pontual & Farias, 2008
- Name authority
- Boubli, Silva, Amado, Hrbek, Pontual & Farias, 2008
- Common name
- Aracá Uakari
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Mammalia
- Order
- Primates
- Family
- Pitheciidae
- Genus
- Cacajao
- 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
- familyPitheciidae Mivart, 1865
- subfamilyPitheciinae Mivart, 1865
- genusCacajao Lesson, 1840
- speciesCacajao ayresi Boubli, Silva, Amado, Hrbek, Pontual & Farias, 2008
Close classified relatives
These entries share the source’s genus, Cacajao. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Kanamari Bald UakariCacajao amuna Silva, Amaral, Roos, Bowler, Röhe, Sampaio, Bertuol, Santana, Silva Júnior, Rylands et al., 2022 | PitheciidaeChordata | Accepted speciesRecorded extant |
| Red Bald UakariCacajao rubicundus (I. Geoffroy Saint-Hilaire & Deville, 1848) | PitheciidaeChordata | Accepted speciesRecorded extant |
Names & synonyms
Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.
| Recorded name | Source status |
|---|---|
| Cacajao melanocephalus ayresi Boubli, Silva, Amado, Hrbek, Pontual & Farias, 2008 Boubli, Silva, Amado, Hrbek, Pontual & Farias, 2008 | 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.
- Boubli, Jean P., Maria Nazareth F. da Silva, Manuella V. Amado, Thomas Hrbek, et al. (2008). A Taxonomic Reassessment of Cacajao melanocephalus Humboldt (1811), with the Description of Two New Species. International Journal of Primatology, Vol. 29, No. 3. 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:P4C6. Classification follows source parent identifiers. English common names may vary by region.