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iNat·71066SpeciesAnimalia1,634 field observations
  1. Animals
  2. ›Arthropods
  3. ›Crustaceans
  4. ›Typical Crustaceans
  5. ›Malacostracans
  6. ›Decapods, Isopods, and allies
  7. ›Decapods and Krill
  8. ›Decapods
  9. ›Crabs, Lobsters, Shrimps, and Allies
  10. ›True Crabs
  11. ›Eubrachyuran Crabs
  12. ›Heterotrematan Crabs
  13. ›Old World Freshwater Crabs
  14. ›Eurasian Freshwater Crabs
  15. ›Potamiscinae
  16. ›Geothelphusa
Japanese Freshwater Crab
Plate 1 of 5. (c) yah_japan, some rights reserved (CC BY-NC), uploaded by yah_japan · via iNaturalist

Japanese Freshwater Crab

Geothelphusa dehaani

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.

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Where it lives

Recorded sightings

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geo-referenced records in GBIF, from museums, herbaria and field observers.

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Every page naming Geothelphusa dehaani in the Biodiversity Heritage Library →

This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 71066.