Okinawa Spiny Rat
Tokudaia muenninki
Red List assessment
Critically Endangeredon the IUCN Red List
- EXExtinct
- EWExtinct in the Wild
- CRCritically Endangered
- ENEndangered
- VUVulnerable
- NTNear Threatened
- LCLeast Concern
The IUCN Red List assesses the Okinawa Spiny Rat as Critically Endangered.
- Genus
- Tokudaia
- Red List category
- Critically Endangered
- Data updated
- August 9, 2026
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The Okinawa Spiny Rat is one of the mammals assessed by the IUCN Red List, so it has a page here — with its scientific name, Tokudaia muenninki, 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.
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In the meantime, the full assessment is on the IUCN Red List.
Questions about the Okinawa Spiny Rat
Is the Okinawa Spiny Rat endangered?
Yes. The IUCN Red List assesses the Okinawa Spiny Rat as Critically Endangered, one of the three threatened categories. The species faces an extremely high risk of extinction in the wild. This is the last category before extinction, and it is reached through a very small or steeply declining population, a tiny range, or both.
What is the scientific name of the Okinawa Spiny Rat?
The Okinawa Spiny Rat is Tokudaia muenninki.
Other species in the genus Tokudaia
Sources
Conservation status, range description and population estimate come from the IUCN Red List assessment for Tokudaia muenninki. 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 (International Union for Conservation of Nature)