Dwarf Fat-tailed Mouse Opossum
Thylamys velutinus
Red List assessment
Near Threatenedon the IUCN Red List
- EXExtinct
- EWExtinct in the Wild
- CRCritically Endangered
- ENEndangered
- VUVulnerable
- NTNear Threatened
- LCLeast Concern
The IUCN Red List assesses the Dwarf Fat-tailed Mouse Opossum as Near Threatened.
- Genus
- Thylamys
- Red List category
- Near Threatened
- Data updated
- August 9, 2026
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The Dwarf Fat-tailed Mouse Opossum is one of the mammals assessed by the IUCN Red List, so it has a page here — with its scientific name, Thylamys velutinus, 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 Dwarf Fat-tailed Mouse Opossum
Is the Dwarf Fat-tailed Mouse Opossum endangered?
The IUCN Red List assesses the Dwarf Fat-tailed Mouse Opossum as Near Threatened. The species does not qualify as threatened today, but it is close to the thresholds and likely to cross them soon. It is the category that most often changes at the next assessment.
What is the scientific name of the Dwarf Fat-tailed Mouse Opossum?
The Dwarf Fat-tailed Mouse Opossum is Thylamys velutinus.
Other species in the genus Thylamys
Buff-bellied Fat-tailed Mouse OpossumThylamys venustus- Cinderella Fat-tailed Mouse OpossumThylamys cinderella
Elegant Fat-tailed Mouse OpossumThylamys elegans
Karimi's Fat-tailed Mouse OpossumThylamys karimii
Pallid Fat-tailed OpossumThylamys pallidior
Paraguayan Fat-tailed Mouse OpossumThylamys macrurus
Sources
Conservation status, range description and population estimate come from the IUCN Red List assessment for Thylamys velutinus. 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 2008. IUCN (International Union for Conservation of Nature)