Black squirrel monkey
Saimiri vanzolinii Ayres, 1985
The black squirrel monkey (Saimiri vanzolinii) is a species in the family Cebidae, order Primates. Recorded adults weigh 769.6 g to 799.5 g and live up to 28.6 years. Its IUCN Red List status is Endangered.

Quick facts about the black squirrel monkey
- Weight
- 769.6 g – 799.5 gsrc for Weight
- Length
- Not recorded
- Lifespan
- 28.6 yearssrc for Lifespan
- Diet
- Herbivoresrc for Diet
- Longest recorded lifespan
- 30.3 years
- Main food
- Not recorded
- Habitat
- Not recorded
- Gestation
- 163 dayssrc for Gestation
- Young per litter or clutch
- 1src for Young per litter or clutch
- Age at maturity
- 2.99 years – 5 yearssrc for Age at maturity
- Litters or clutches a year
- 1.07src for Litters or clutches a year
- Active
- By day (diurnal)src for Active
- Lifestyle
- Arborealsrc for Lifestyle
- Conservation status
- Endangered (IUCN)src for Conservation status
- Countries on record
- Not recorded
Where does the black squirrel monkey live?
Not recorded
What is the black squirrel monkey?
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.
From the Wikipedia article “Black squirrel monkey” (en.wikipedia.org/w/index.php?title=Black_squirrel_monkey&oldid=1356901493), by Wikipedia contributors, licensed under CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0). This block is kept separate from our own text.
Is the black squirrel monkey endangered?
The black squirrel monkey is listed as Endangered on the IUCN Red List: it faces a very high risk of extinction in the wild.
- LCLeast Concern
- NTNear Threatened
- VUVulnerable
- ENEndangered
- CRCritically Endangered
- EWExtinct in the Wild
- EXExtinct
Category via Wikidata (CC0). Find the full assessment on the IUCN Red List. See all Endangered species.
How is the black squirrel monkey classified?
- kingdomAnimalia
- phylumChordata
- classMammalia
- orderPrimates
- familyCebidae
- genusSaimiri
- SpeciesSaimiri vanzolinii Ayres, 1985
Other names and names in other languages (20)
- Black-headed squirrel monkeyEnglish
- Black-headed squirrel monkeyEnglish
- SwartkuifeekhoringaapAfrikaans
- سعدان سنجابي أسودArabic
- kotul VanzoliniůvCzech
- Dunkler TotenkopfaffeGerman
- Vanzolini-TotenkopfaffeGerman
- Mono ardilla de VanzoliniSpanish
- Mono ardilla de cabeza negraSpanish
- mustapääsaimiriFinnish
- Saimiri noirFrench
- Saïmiri noirFrench
- クロアタマリスザルJapanese
- Zwart DoodshoofdaapjeDutch
- sajmiri czarnaPolish
- Macaco-de-cheiroPortuguese
- Macaco-de-cheiro-pretoPortuguese
- Macaco-esquilo-de-cabeça-negraPortuguese
- Kara sincap maymunuTurkish
- 黑松鼠猴Chinese
Relatives of the black squirrel monkey
Other species in the same genus Saimiri.

Guianan squirrel monkey
Saimiri sciureus

Black-capped squirrel monkey
Saimiri boliviensis

Central American squirrel monkey
Saimiri oerstedii

Bare-eared squirrel monkey
Saimiri ustus
Humboldt's squirrel monkey
Saimiri cassiquiarensis
Collins' squirrel monkey
Saimiri collinsi
CompareBlack squirrel monkey vs Guianan squirrel monkeyBlack squirrel monkey vs Black-capped squirrel monkeyBlack squirrel monkey vs Central American squirrel monkeyBlack squirrel monkey vs Bare-eared squirrel monkey
Common questions
Answered only where our data holds the answer.
How big is the black squirrel monkey?
An adult black squirrel monkey weighs 769.6 g – 799.5 g, according to values recorded on Wikidata.
Is the black squirrel monkey endangered?
The black squirrel monkey is listed as Endangered on the IUCN Red List, meaning it faces a very high risk of extinction in the wild.
How long does the black squirrel monkey live?
The black squirrel monkey has a recorded lifespan of 28.6 years.
How long is the black squirrel monkey pregnant?
The recorded gestation period is 163 days.
What kind of animal is the black squirrel monkey?
The black squirrel monkey (Saimiri vanzolinii) belongs to the family Cebidae in the order Primates.
Sources and how to cite this page
Data as of 2026-11-11. How this page is put together.
- 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).
Embed a card for this animal on your own site
Copy this code. The card shows the photo with its credit, key facts and a link back to this page.
CreatureData. (2026). Black squirrel monkey (Saimiri vanzolinii). Retrieved from https://creaturedata.com/animals/black-squirrel-monkey
“Black squirrel monkey (Saimiri vanzolinii).” CreatureData, 2026, https://creaturedata.com/animals/black-squirrel-monkey.
@misc{black_squirrel_monkey_2026,
title = {Black squirrel monkey (Saimiri vanzolinii)},
author = {{CreatureData}},
year = {2026},
url = {https://creaturedata.com/animals/black-squirrel-monkey},
note = {Data as of 2026-11-11}
}