Black Squirrel Monkey
Saimiri vanzolinii Ayres, 1985
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 black squirrel monkey (Saimiri vanzolinii), also known as the blackish squirrel monkey or black-headed squirrel monkey, is a small New World primate, endemic to the central Amazon in Brazil. It largely resembles the female of the far more common Bolivian squirrel monkey, though the latter lacks the black central back.
This squirrel monkey has one of the most restricted geographical distributions for a primate, living in várzea forest in the confluence of the Japura and Solimões rivers. Its entire range is within the Mamirauá Sustainable Development Reserve. It resides in the reserve with two other Saimiri species. It is a social primate that travels with other black squirrel monkeys in large troops within its habitat. Its small size makes it an easy target for its predators; however, it may resist predators when it travels in large troops.
Its species overall has positive effects on the economy.
Wikipedia contributors, Black squirrel monkey; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T09:06:01.471910+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Saimiri vanzolinii Ayres, 1985
- Name authority
- Ayres, 1985
- Common name
- Black Squirrel Monkey
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Mammalia
- Order
- Primates
- Family
- Cebidae
- Genus
- Saimiri
- 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
- familyCebidae Bonaparte, 1831
- subfamilySaimiriinae Miller, 1812
- genusSaimiri Voigt in G. Cuvier, 1831
- speciesSaimiri vanzolinii Ayres, 1985
Close classified relatives
These entries share the source’s genus, Saimiri. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Central American Squirrel MonkeySaimiri oerstedii (Reinhardt, 1872) | CebidaeChordata | Accepted speciesRecorded extant |
| Common Squirrel MonkeySaimiri sciureus (Linnaeus, 1758) | CebidaeChordata | Accepted speciesRecorded extant |
| Black-capped Squirrel MonkeySaimiri boliviensis (I. Geoffroy Saint-Hilaire & de Blainville, 1834) | CebidaeChordata | Accepted speciesRecorded extant |
| Humboldt's Squirrel MonkeySaimiri cassiquiarensis (Lesson, 1840) | CebidaeChordata | Accepted speciesRecorded extant |
| Collins' Squirrel MonkeySaimiri collinsi Osgood, 1916 | CebidaeChordata | Accepted speciesRecorded extant |
| Ecuadorean Squirrel MonkeySaimiri macrodon Elliot, 1907 | CebidaeChordata | Accepted speciesRecorded extant |
| Bare-eared Squirrel MonkeySaimiri ustus (I. Geoffroy Saint-Hilaire, 1843) | CebidaeChordata | Accepted speciesRecorded extant |
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=572982 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:4TZK5. Classification follows source parent identifiers. English common names may vary by region.