Enterogona
Aphanibranchion Oka, 1906
Diazona Savigny, 1816
Pseudodiazona Millar, 1963
Pseudorhopalaea Millar, 1975
Rhopalaea Philippi, 1843
Rhopalopsis Herdman, 1891
Syndiazona Oka, 1926
Synthethys Della Valle, 1908
Synthetis Huxley, 1857
Tylobranchion Herdman, 1886
