Perbrinckia is a genus of freshwater crabs of the family Gecarcinucidae that is endemic to Sri Lanka,[1] named after Per Brinck.

Its natural habitats are subtropical or tropical moist lowland forests, subtropical or tropical swamps, and rivers.

It contains 14 species,[2] most of which are included on the IUCN Red List as critically endangered species (CR) or vulnerable species (VU) because they are threatened by habitat loss; only one species is of least concern (LC).

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