Hapalogaster

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

Hapalogaster
Hapalogaster grebnitzkii
Scientific classification
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