Decapoda Latreille, 1802
Blastidae
Epialtidae MacLeay, 1838
Hymenosomatidae MacLeay, 1838
Inachidae MacLeay, 1838
Inachoididae Dana, 1851
Majidae Samouelle, 1819
Mithracidae Balss, 1929
Oregoniidae Garth, 1958
Pisidae Dana, 1851
Tychidae Dana, 1851
