Geothelphusa
| Geothelphusa | |
|---|---|
| Geothelphusa dehaani, the sawagani crab | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Malacostraca |
| Order: | Decapoda |
| Suborder: | Pleocyemata |
| Infraorder: | Brachyura |
| Family: | Potamidae |
| Subfamily: | Potamiscinae |
| Genus: | Geothelphusa Stimpson, 1858 |
| Type species | |
| Geothelphusa obtusipes Stimpson, 1858 | |
| Synonyms | |
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Geothelphusa is a genus of freshwater crabs within the family Potamidae, native to East Asia, with a distribution spanning Japan, Taiwan, China, and Korea. Established by William Stimpson in 1858, it ranks among the most diverse genera in Potamidae, encompassing over 50 recognized species.