Slim-faced Slender Mouse Opossum
EN

Slim-faced Slender Mouse Opossum

Marmosops cracens

Unknown

Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Narrow-headed_slender_opossum

Overview

A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.

The Slim-faced Slender Mouse Opossum faces severe pressure from deforestation and habitat fragmentation across its restricted range in the Atlantic Forest of southeastern Brazil. Mining activities and urban expansion have eliminated much of its original forest habitat, while remaining fragments are too small to support viable populations. The species' specialized arboreal lifestyle and apparent sensitivity to habitat disturbance make it particularly vulnerable to ongoing forest conversion for agriculture and development.

Threat summary

Habitat

This species inhabits primary and secondary Atlantic Forest (Mata Atlântica) in southeastern Brazil, preferring dense canopy areas with abundant epiphytes and climbing vegetation. It occupies both lowland and montane forest zones, typically in areas with high humidity and complex vertical forest structure.

Other threatened species in Didelphidae

Rufous Mouse OpossumVU

Rufous Mouse Opossum

Marmosa lepida

Unknown
Wood Sprite Gracile Mouse OpossumEN

Wood Sprite Gracile Mouse Opossum

Gracilinanus dryas

Unknown
Caluromys derbianusVU

Caluromys derbianus

Unknown

Frequently asked questions

Why is Slim-faced Slender Mouse Opossum classified as Endangered?
Slim-faced Slender Mouse Opossum is classified as Endangered — facing a very high risk of extinction in the wild — because population numbers are declining steeply and key habitats are under sustained pressure. The Slim-faced Slender Mouse Opossum faces severe pressure from deforestation and habitat fragmentation across its restricted range in the Atlantic Forest of southeastern Brazil. Mining activities and urban expansion have eliminated much of its original forest habitat, while remaining fragments are too small to support viable populations. The species' specialized arboreal lifestyle and apparent sensitivity to habitat disturbance make it particularly vulnerable to ongoing forest conversion for agriculture and development.
Where does Slim-faced Slender Mouse Opossum live?
Slim-faced Slender Mouse Opossum occurs in across multiple regions. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Slim-faced Slender Mouse Opossum?
The main threats to Slim-faced Slender Mouse Opossum are ai-1, ai-2, ai-3, and ai-4. The full IUCN-classified threat record for this species is detailed on the species page.

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