Majoidea Samouelle, 1819
Amarinus Lucas, 1980
Apechocinus Ng & Chuang, 1996
Cancrocaeca Ng, 1991
Crustaenia Ng & Chuang, 1996
Elamena H. Milne Edwards, 1837
Elamenopsis A. Milne-Edwards, 1873
Guaplax Naruse, Ng & Guinot, 2008
Halicarcinides Hale, 1927
Halicarcinus White, 1846
Halimena Melrose, 1975
Hymenicoides Kemp, 1917
Hymenosoma Desmarest, 1823
Limnopilos Chuang & Ng, 1991
Micas Ng & Richer de Forges, 1996
Neohymenicus Lucas, 1980
Neorhynchoplax Sakai, 1938
Odiomaris Ng & Richer de Forges, 1996
Rhynchoplax Stimpson, 1858
Sulaplax Naruse, Ng & Guinot, 2008
Trigonoplax H. Milne Edwards, 1853