Wallace's Large Spiny Rat
Halmaheramys wallacei
Red List assessment
Endangeredon the IUCN Red List
- EXExtinct
- EWExtinct in the Wild
- CRCritically Endangered
- ENEndangered
- VUVulnerable
- NTNear Threatened
- LCLeast Concern
The IUCN Red List assesses the Wallace's Large Spiny Rat as Endangered.
- Genus
- Halmaheramys
- Red List category
- Endangered
- Data updated
- August 9, 2026
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The Wallace's Large Spiny Rat is one of the mammals assessed by the IUCN Red List, so it has a page here — with its scientific name, Halmaheramys wallacei, 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 Wallace's Large Spiny Rat
Is the Wallace's Large Spiny Rat endangered?
Yes. The IUCN Red List assesses the Wallace's Large Spiny Rat as Endangered, one of the three threatened categories. The species faces a very high risk of extinction in the wild — a step below Critically Endangered, but still on a trajectory that ends badly without intervention.
What is the scientific name of the Wallace's Large Spiny Rat?
The Wallace's Large Spiny Rat is Halmaheramys wallacei.
Other species in the genus Halmaheramys
Sources
Conservation status, range description and population estimate come from the IUCN Red List assessment for Halmaheramys wallacei. 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 2025. IUCN SSC Small Mammal Specialist Group