Alderia Allman, 1845 (basis of record)
Alderiopsis nigra (Baba, 1937) (basis of record)
Costasiella Pruvot-Fol, 1951 (basis of record)
Costasiella pallida K. R. Jensen, 1985 (basis of record)
Elysia Risso, 1818 (basis of record)
Elysia atroviridis Baba, 1955 (basis of record)
Elysia chilkensis Eliot, 1916 (basis of record)
Elysia grandifolia Kelaart, 1858 (additional source)
Elysia japonica Eliot, 1913 (basis of record)
Elysia nigrocapitata Baba, 1957 (basis of record)
Elysia trisinuata Baba, 1949 (basis of record)
Elysia verrucosa K. R. Jensen, 1985 (basis of record)
Elysia viridis (Montagu, 1804) (additional source)
Ercolania Trinchese, 1872 (basis of record)
Ercolania boodleae (Baba, 1938) (basis of record)
Ercolania gopalai (K. V. Rao, 1937) (basis of record)
Ercolania tentaculata (Eliot, 1917) (basis of record)
Gascoignella aprica K. R. Jensen, 1985 (basis of record)
Hermaeidae H. Adams & A. Adams, 1854 (basis of record)
Limapontiidae Gray, 1847 (basis of record)
Oxynoidae Stoliczka, 1868 (1847) (basis of record)
Placida Trinchese, 1876 (basis of record)
Plakobranchus ocellatus van Hasselt, 1824 (basis of record)
Platyhedylidae Salvini-Plawen, 1973 (additional source)
Sacoglossa (basis of record)
Volvatella Pease, 1860 (basis of record)
Volvatella ayakii Hamatani, 1972 (basis of record)