Bare-eared squirrel monkey

Weight

886.5 g – 1 kgsrc for Weight

Length

Not recorded

Lifespan

14.4 yearssrc for Lifespan

Diet

Herbivoresrc for Diet

Main food

Not recorded

Habitat

Not recorded

Young per litter or clutch

1.02src for Young per litter or clutch

Active

By day (diurnal)src for Active

Lifestyle

Arborealsrc for Lifestyle

Conservation status

Near Threatened (IUCN)src for Conservation status

Countries on record

Not recorded

Not recorded

The bare-eared squirrel monkey is listed as Near Threatened on the IUCN Red List: it is close to qualifying as threatened.

1. LCLeast Concern
2. NTNear Threatened
3. VUVulnerable
4. ENEndangered
5. CRCritically Endangered
6. EWExtinct in the Wild
7. EXExtinct

Category via Wikidata (CC0). Find the full assessment on the IUCN Red List. See all Near Threatened species.

1. kingdomAnimalia
2. phylumChordata
3. classMammalia
4. orderPrimates
5. familyCebidae
6. genusSaimiri
7. SpeciesSaimiri ustus (I. Geoffroy Saint-Hilaire, 1843)

Synonyms Saimiri madeirae

Catalogue of LifeWikipediaiNaturalistWikidataIUCN Red List

LC, Least Concern

Guianan squirrel monkey

Saimiri sciureus

Cebidae

LC, Least Concern

Black-capped squirrel monkey

Saimiri boliviensis

Cebidae

EN, Endangered

Central American squirrel monkey

Saimiri oerstedii

Cebidae

EN, Endangered

Black squirrel monkey

Saimiri vanzolinii

Cebidae

H

Humboldt's squirrel monkey

Saimiri cassiquiarensis

CebidaeNo free photo yet

C

Collins' squirrel monkey

Saimiri collinsi

CebidaeNo free photo yet

CompareBare-eared squirrel monkey vs Guianan squirrel monkeyBare-eared squirrel monkey vs Black-capped squirrel monkeyBare-eared squirrel monkey vs Central American squirrel monkeyBare-eared squirrel monkey vs Black squirrel monkey

• An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles · CC0 1.0 · E096-269
  Myhrvold, N.P., Baldridge, E., Chan, B., Sivam, D., Freeman, D.L. & Ernest, S.K.M. (2015) An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96: 3109. https://doi.org/10.1890/15-0846R.1. Data: https://doi.org/10.6084/m9.figshare.3563457.v1
• Catalogue of Life eXtended Release · CC BY 4.0 · 2026-10-16 XR
  Catalogue of Life (2026). Catalogue of Life eXtended Release, version 2026-10-16 XR. Catalogue of Life Foundation, Amsterdam, Netherlands. https://doi.org/10.48580/dgzlf
• Wikimedia Commons · per file (CC0 / public domain / CC BY green, CC BY-SA amber, anything else not displayed) · 2026-11-11
  Wikimedia Commons contributors. Wikimedia Commons. https://commons.wikimedia.org (each file credited to its author under its own licence).
• EltonTraits 1.0: species-level foraging attributes of the world's birds and mammals · CC0 1.0 · 1.0
  Wilman, H., Belmaker, J., Simpson, J., de la Rosa, C., Rivadeneira, M.M. & Jetz, W. (2014) EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95: 2027. https://doi.org/10.1890/13-1917.1. Data: https://doi.org/10.6084/m9.figshare.3559887.v1
• Wikidata · CC0 1.0 · 2026-11-11
  Wikidata contributors. Wikidata. https://www.wikidata.org (data retrieved via the Wikidata Query Service).
• Wikipedia (English) · CC BY-SA 4.0 · 2026-11-11
  Wikipedia contributors. Wikipedia, The Free Encyclopedia. https://en.wikipedia.org (text under CC BY-SA 4.0; each block names its article and revision).

@misc{bare_eared_squirrel_monkey_2026,
  title = {Bare-eared squirrel monkey (Saimiri ustus)},
  author = {{CreatureData}},
  year = {2026},
  url = {https://creaturedata.com/animals/bare-eared-squirrel-monkey},
  note = {Data as of 2026-11-11}
}