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NATURAL HISTORY · CATALOGUE RECORD

Central American Squirrel Monkey

Saimiri oerstedii (Reinhardt, 1872)

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 Central American squirrel monkey (Saimiri oerstedii), also known as the red-backed squirrel monkey, is a squirrel monkey species from the Pacific coast of Costa Rica and Panama. It is restricted to the northwestern tip of Panama near the border with Costa Rica, and the central and southern Pacific coast of Costa Rica, primarily in Manuel Antonio and Corcovado National Parks. It is a small monkey with an orange back and a distinctive white and black facial mask. It has an omnivorous diet, eating fruits, other plant materials, invertebrates and some small vertebrates. In turn, it has a number of predators, including raptors, cats and snakes. It lives in large groups that typically contain between 20 and 75 monkeys. It has one of the most egalitarian social structures of all monkeys. Females do not form dominance hierarchies, and males do so only at breeding season. Females become sexually mature at 2+1⁄2 years, and males at 4 to 5 years. Sexually mature females leave the natal group, but males can remain with their natal group their entire life.

Wikipedia contributors, Central American squirrel monkey; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T13:05:16.149665+00:00. This reference remains separate from the taxonomic record.

Identity & source status

Scientific name
Saimiri oerstedii (Reinhardt, 1872)
Name authority
(Reinhardt, 1872)
Common name
Central American 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.

  1. domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
  2. kingdomAnimalia
  3. phylumChordata
  4. subphylumVertebrata
  5. infraphylumGnathostomata
  6. parvphylumOsteichthyes
  7. megaclassTetrapoda
  8. classMammalia Linnaeus, 1758
  9. subclassTheria Parker & Haswell, 1897
  10. infraclassEutheria Gill, 1872
  11. orderPrimates Linnaeus, 1758
  12. suborderHaplorrhini Pocock, 1918
  13. infraorderSimiiformes Haeckel, 1866
  14. familyCebidae Bonaparte, 1831
  15. subfamilySaimiriinae Miller, 1812
  16. genusSaimiri Voigt in G. Cuvier, 1831
  17. speciesSaimiri oerstedii (Reinhardt, 1872)

Close classified relatives

These entries share the source’s genus, Saimiri. They are not necessarily the closest relatives established by molecular evidence.

SpeciesClassificationSource status
Common Squirrel MonkeySaimiri sciureus (Linnaeus, 1758)CebidaeChordataAccepted speciesRecorded extant
Black-capped Squirrel MonkeySaimiri boliviensis (I. Geoffroy Saint-Hilaire & de Blainville, 1834)CebidaeChordataAccepted speciesRecorded extant
Humboldt's Squirrel MonkeySaimiri cassiquiarensis (Lesson, 1840)CebidaeChordataAccepted speciesRecorded extant
Collins' Squirrel MonkeySaimiri collinsi Osgood, 1916CebidaeChordataAccepted speciesRecorded extant
Ecuadorean Squirrel MonkeySaimiri macrodon Elliot, 1907CebidaeChordataAccepted speciesRecorded extant
Bare-eared Squirrel MonkeySaimiri ustus (I. Geoffroy Saint-Hilaire, 1843)CebidaeChordataAccepted speciesRecorded extant
Black Squirrel MonkeySaimiri vanzolinii Ayres, 1985CebidaeChordataAccepted speciesRecorded extant

Browse 15 records assigned to Cebidae.

Documented distribution

Source distribution statements, not a complete range map. A listed locality is not necessarily a place of origin.

Middle America

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.

  1. https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=572980 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:4TZJZ. Classification follows source parent identifiers. English common names may vary by region.