Alderella Odhner, 1968 (additional source)
Alderia Allman, 1845 (basis of record)
Ascobulla Ev. Marcus, 1972 (basis of record)
Calliopaea A. d'Orbigny, 1837 (basis of record)
Costasiella Pruvot-Fol, 1951 (basis of record)
Elysia Risso, 1818 (basis of record)
Elysia fezi Vilella, 1968 (basis of record)
Elysia grandifolia Kelaart, 1858 (additional source)
Elysia marginata (Pease, 1871) (basis of record)
Elysia nealae Ostergaard, 1955 (basis of record)
Elysia viridis (Montagu, 1804) (additional source)
Ercolania Trinchese, 1872 (basis of record)
Ercolania siottii Trinchese, 1872 accepted as Ercolania viridis (A. Costa, 1866) (basis of record)
Hermaeidae H. Adams & A. Adams, 1854 (basis of record)
Limapontia G. Johnston, 1836 (basis of record)
Limapontiidae Gray, 1847 (basis of record)
Oxynoidae Stoliczka, 1868 (1847) (basis of record)
Placida Trinchese, 1876 (basis of record)
Placida brevicornis (A. Costa, 1867) accepted as Placida dendritica (Alder & Hancock, 1843) (basis of record)
Platyhedyle Salvini-Plawen, 1973 (basis of record)
Platyhedylidae Salvini-Plawen, 1973 (additional source)
Sacoglossa (basis of record)
Stiliger Ehrenberg, 1828 (basis of record)
Thuridilla Bergh, 1872 (basis of record)
Thuridilla picta (A. E. Verrill, 1901) (additional source)