MacLeay, 1838
Carapace squarish to hexagonal; front with teeth or lobes; antero-lateral and postero-lateral margins of carapace with relatively dense setae, but not forming distinct fringe. Orbit complete. Fossae for antennulae squarish to longer than broad, antennulae fold longitudinally or almost so. Antennae short, much shorter than carapace length, not strongly setose. A triangular projection of the basal antennal segment fills up the inner hiatus of the orbit. Vulvae of adult female exposed, not covered by abdomen.
Subfamilies treated:
subfamily Carcinoplacinae H. Milne Edwards, 1852
subfamily Chasmocarcininae Serène, 1964
subfamily Eucratopsinae Stimpson, 1871
subfamily Euryplacinae Stimpson, 1871
subfamily Goneplacinae MacLeay, 1838
subfamily Pseudoziinae Alcock, 1898
subfamily Rhizopinae Stimpson, 1858