Hairy-tailed Tree Rat
Brachytarsomys villosa
Red List assessment
Vulnerableon the IUCN Red List
- EXExtinct
- EWExtinct in the Wild
- CRCritically Endangered
- ENEndangered
- VUVulnerable
- NTNear Threatened
- LCLeast Concern
The IUCN Red List assesses the Hairy-tailed Tree Rat as Vulnerable.
- Genus
- Brachytarsomys
- Red List category
- Vulnerable
- Data updated
- August 9, 2026
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The Hairy-tailed Tree Rat is one of the mammals assessed by the IUCN Red List, so it has a page here — with its scientific name, Brachytarsomys villosa, its conservation category and, where one is known, a recorded observation on the map. What is missing is the rest: habitat, distribution, diet, behaviour, threats and the conservation work under way.
Each profile is researched and checked one species at a time, and there are thousands to go. You can put this one at the front of the queue.
In the meantime, the full assessment is on the IUCN Red List.
Questions about the Hairy-tailed Tree Rat
Is the Hairy-tailed Tree Rat endangered?
Yes. The IUCN Red List assesses the Hairy-tailed Tree Rat as Vulnerable, one of the three threatened categories. The species faces a high risk of extinction in the wild. It is the first of the three threatened categories: numbers are falling, the range is shrinking, or the population is small enough that a single bad event could do lasting damage.
What is the scientific name of the Hairy-tailed Tree Rat?
The Hairy-tailed Tree Rat is Brachytarsomys villosa.
Other species in the genus Brachytarsomys
Sources
Conservation status, range description and population estimate come from the IUCN Red List assessment for Brachytarsomys villosa. Countries are derived from that range description, not from a mapped country list. Last refreshed on .
The distribution map is drawn from the IUCN Red List spatial data compiled in 2016. IUCN SSC Small Mammal Specialist Group