Pleocyemata [suborder]
(454 species)

Brachyura [infraorder] (173)

Aethroidea [superfamily] (1)

Calappoidea [superfamily] (7)

Carpilioidea [superfamily] (1)

Cryptochiroidea [superfamily] (3)

Dorippoidea [superfamily] (1)

Dromioidea [superfamily] (3)

Eriphioidea [superfamily] (2)

Goneplacoidea [superfamily] (2)

Grapsoidea [superfamily] (17)

Homolodromioidea [superfamily] (1)

Leucosioidea [superfamily] (8)

Majoidea [superfamily] (44)

Ocypodoidea [superfamily] (11)

Palicoidea [superfamily] (1)

Partenopoidea [superfamily] (1)

Pilumnoidea [superfamily] (7)

Pinnotheroidea [superfamily] (6)

Portunoidea [superfamily] (20)

Raninoidea [superfamily] (2)

Trapezioidea [superfamily] (1)

Xanthoidea [superfamily] (34)