Pacific Spiny Rat
Proechimys decumanus
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 Pacific Spiny Rat as Near Threatened.
- Genus
- Proechimys
- Red List category
- Near Threatened
- Data updated
- August 9, 2026
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The Pacific Spiny Rat is one of the mammals assessed by the IUCN Red List, so it has a page here — with its scientific name, Proechimys decumanus, 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 Pacific Spiny Rat
Is the Pacific Spiny Rat endangered?
The IUCN Red List assesses the Pacific Spiny Rat 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 Pacific Spiny Rat?
The Pacific Spiny Rat is Proechimys decumanus.
Other species in the genus Proechimys
Sources
Conservation status, range description and population estimate come from the IUCN Red List assessment for Proechimys decumanus. 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