---
title: "Humboldt’s Squirrel Monkey"
description: "Saimiri cassiquiarensis — Ssaki. Humboldt's squirrel monkey (Saimiri cassiquiarensis) is a species of squirrel monkey from Brazil, Colombia, Ecuador, Peru and Venezuela."
canonical: https://animalchecklist.com/pl/animal/humboldt-s-squirrel-monkey
last_updated: 2026-09-20
---

# Humboldt’s Squirrel Monkey

> Saimiri cassiquiarensis — Ssaki. Humboldt's squirrel monkey (Saimiri cassiquiarensis) is a species of squirrel monkey from Brazil, Colombia, Ecuador, Peru and Venezuela.

- Scientific name: *Saimiri cassiquiarensis*
- Category: `mammals` (Ssaki)
- Habitats: `forest` (Las), `jungle` (Dżungla)
- iNaturalist observations: 858
- iNaturalist taxon: [1368519](https://www.inaturalist.org/taxa/1368519)

## Names

- en: Humboldt’s Squirrel Monkey
- de: Humboldt-Totenkopfaffe
- es: Mono ardilla de Humboldt
- fr: Saïmiri du Casiquiare

## Countries with the most observations

CO (577), BR (93)

## Summary

Humboldt's squirrel monkey (Saimiri cassiquiarensis) is a species of squirrel monkey from Brazil, Colombia, Ecuador, Peru and Venezuela. It had previously been considered a subspecies of the common squirrel monkey, S. sciureus, but was elevated to full species status based on a genetic study by Carretero-Pinzón in 2009. A genetic study by Jessica Lynch Alfaro, et al indicated that the Ecuadorian squirrel monkey may be synonymous with Saimiri cassiquiarensis.  As of 2018, the Ecuadorian squirrel monkey is generally regarded as a subspecies of Humboldt's squirrel monkey, S. cassiquiarensis macrodon.
Humboldt's squirrel…

Text: Wikipedia (en), CC BY-SA 4.0 — https://en.wikipedia.org/wiki/Humboldt%27s_squirrel_monkey

## Photo

![Humboldt’s Squirrel Monkey](https://animalchecklist.com/img/animals/humboldt-s-squirrel-monkey/medium.jpg)

Photo: Dario Taraborelli · CC0 · inaturalist — https://www.inaturalist.org/observations/195962519

## Machine access

`GET https://animalchecklist.com/api/v1/animals/humboldt-s-squirrel-monkey?lang=pl` — see [openapi.json](https://animalchecklist.com/openapi.json).