Wildlife of Borneo

Plantain squirrel

Callosciurus notatus

The plantain squirrel lives on Borneo and in neighbouring Southeast Asian regions.

Least concern
Species details & taxonomy
Species
Callosciurus notatus
Genus
Callosciurus
Family
Sciuridae
Order
Rodentia
Class
Mammalia
Plantain squirrel — Callosciurus notatus
Plantain squirrel (Callosciurus notatus).Richard Fuller · Wikimedia Commons · CC0 · Original

Borneo range and identity

The plantain squirrel lives on Borneo and in neighbouring Southeast Asian regions. It uses rainforest, secondary woodland, mangroves, gardens and plantations, often moving in lower and middle tree levels. The Borneo black-banded squirrel, Callosciurus orestes, is a separate species.

Sources & references · 3American Society of Mammalogists, MDD v2.5 · Callosciurus notatus: taxonomy and linked categoryUniversity of Michigan, Animal Diversity Web · Callosciurus notatus: natural historyHandbook of the Mammals of the World / Lynx Edicions · Callosciurus notatus

Feeding and activity

It is active by day and eats fruit, seeds, leafy shoots, flowers and insects. Bark gnawing can give access to plant fluids. Individuals are often seen alone or in small groups. Feeding reflects the resources available in each habitat.

Sources & references · 3American Society of Mammalogists, MDD v2.5 · Callosciurus notatus: taxonomy and linked categoryUniversity of Michigan, Animal Diversity Web · Callosciurus notatus: natural historyHandbook of the Mammals of the World / Lynx Edicions · Callosciurus notatus

Ecological role and observation

The plantain squirrel is globally Least Concern. Seeds are both food and objects it can move, so its effect on plants depends on whether seeds are eaten or survive. Daytime watching of lower branches fits its habits, while identification requires care where several squirrel species share the forest.

Sources & references · 3American Society of Mammalogists, MDD v2.5 · Callosciurus notatus: taxonomy and linked categoryUniversity of Michigan, Animal Diversity Web · Callosciurus notatus: natural historyHandbook of the Mammals of the World / Lynx Edicions · Callosciurus notatus

Stripes along the flanks

A brown back, reddish belly and paired flank stripes distinguish this squirrel: a pale stripe sits above a dark one on either side. Borneo animals can have a deep chestnut or maroon underside. The long tail helps balance movement between branches. Tall, closed dipterocarp forest often supports fewer of these squirrels than edges and disturbed woodland.

Sources & references · 1Handbook of the Mammals of the World / Lynx Edicions · Callosciurus notatus

Leaf nests and alarm calls

The nest is a rounded structure of twigs and leaves, lined with softer plant fibres and entered from the side. It is often placed high in a bush or small tree. A repeated barking alarm accompanied by tail flicking can warn of a ground predator, prompting nearby squirrels to climb and become still.

Sources & references · 1Handbook of the Mammals of the World / Lynx Edicions · Callosciurus notatus

Sources & references

American Society of Mammalogists, MDD v2.5 · Callosciurus notatus: taxonomy and linked categoryAccessed: 2026-10-04

University of Michigan, Animal Diversity Web · Callosciurus notatus: natural historyAccessed: 2026-10-04

Handbook of the Mammals of the World / Lynx Edicions · Callosciurus notatusAccessed: 2026-10-04

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