Hapalogastridae is a family of decapod crustaceans, containing the following species: \n* Acantholithodes Holmes, 1895 \n* Acantholithodes hispidus (Stimpson, 1860) \n* Dermaturus Brandt, 1850 \n* Dermaturus mandtii Brandt, 1850 — wrinkled crab \n* Hapalogaster Brandt, 1850 \n* Hapalogaster cavicauda Stimpson, 1859 \n* Hapalogaster dentata (De Haan, 1849) \n* Hapalogaster grebnitzkii Schalfeew, 1892 \n* Hapalogaster mertensii Brandt, 1850 \n* Oedignathus Benedict, 1895 \n* Oedignathus inermis (Stimpson, 1860) — granular claw crab \n* Placetron Schalfeew, 1892 \n* Placetron wosnessenskii Schalfeew, 1892 — scaled crab