| Hapalogaster | |
|---|---|
 | |
| Hapalogaster grebnitzkii | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Malacostraca |
| Order: | Decapoda |
| Suborder: | Pleocyemata |
| Infraorder: | Anomura |
| Family: | Lithodidae |
| Subfamily: | Hapalogastrinae |
| Genus: | Hapalogaster Brandt, 1850 [1] |
| Type species | |
| Hapalogaster mertensii Brandt, 1850 | |
Hapalogaster is a genus of king crabs, containing the following four species: [2]
| Image | Scientific name | Common name | Distribution |
|---|---|---|---|
 | Hapalogaster cavicauda Stimpson, 1859 | West Coast of the United States | |
 | Hapalogaster dentata (De Haan, 1849) | Stone crab, spiny stone crab | Yellow Sea, Sea of Japan, coast of Mainland Japan |
 | Hapalogaster grebnitzkii Schalfeew, 1892 | ||
 | Hapalogaster mertensii Brandt, 1850 |
