Geothelphusa dehaani
| Geothelphusa dehaani | |
|---|---|
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Malacostraca |
| Order: | Decapoda |
| Suborder: | Pleocyemata |
| Infraorder: | Brachyura |
| Family: | Potamidae |
| Genus: | Geothelphusa |
| Species: | G. dehaani |
| Binomial name | |
| Geothelphusa dehaani (White, 1847) | |
| Synonyms | |
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Geothelphusa dehaani, commonly known as Japanese freshwater crab or sawagani (Japanese: サワガニ), is a species of freshwater crab in the family Potamidae, endemic to Japan. It inhabits clear mountain streams and is known for its small size, nocturnal behavior, and role as an indicator of healthy freshwater ecosystems. The species is also a culinary delicacy in Japanese cuisine.