• Actaeonia corrugata Alder & Hancock, 1848 accepted as Limapontia senestra (Quatrefages, 1844)
• Actaeonia senestra Quatrefages, 1844 accepted as Limapontia senestra (Quatrefages, 1844)
• Alderella comosa (A. Costa, 1867)
• Alderia comosa A. Costa, 1867 accepted as Alderella comosa (A. Costa, 1867)
• Alderia modesta (Lovén, 1844)
• Aplysiopsis elegans Deshayes, 1853
• Aplysiopsis formosa Pruvot-Fol, 1953
• Aplysiopsis singularis Moro & Ortea, 2015
• Aplysiopsis zebra K. B. Clark, 1982 accepted as Aplysiopsis formosa Pruvot-Fol, 1953
• Aplysiopterus neapolitanus Delle Chiaje, 1830 accepted as Elysia viridis (Montagu, 1804)
• Beccaria tricolor Trinchese, 1870 accepted as Caliphylla mediterranea A. Costa, 1867
• Bosellia leve Fernández-Ovies & Ortea, 1986 accepted as Bosellia levis Fernandez-Ovies & Ortea, 1986
• Bosellia levis Fernandez-Ovies & Ortea, 1986
• Bosellia mimetica Trinchese, 1891
• Caliphylla mediterranea A. Costa, 1867
• Caliphylla viridis (Deshayes, 1857)
• Calliopaea bellula d'Orbigny, 1837
• Calliopaea dendritica Alder & Hancock, 1843 accepted as Placida dendritica (Alder & Hancock, 1843)
• Calliopaea oophaga Lemche, 1974 (taxon inquirendum)
• Calliopaea rissoana Milne Edwards, 1842 (taxon inquirendum)
• Calliopaea souleyetii Vérany, 1846 (taxon inquirendum)
• Canthopsis harvardiana Agassiz, 1850 accepted as Alderia modesta (Lovén, 1844)
• Cenia cocksi Alder & Hancock, 1848 accepted as Limapontia senestra (Quatrefages, 1844)
• Chalidis coerulea Quatrefages, 1844 accepted as Limapontia capitata (O. F. Müller, 1774)
• Chalidis nigricans Alder & Hancock, 1847 accepted as Limapontia capitata (O. F. Müller, 1774)
• Costasiella virescens Pruvot-Fol, 1951
• Custiphorus vesiculosus Deshayes, 1864 accepted as Calliopaea bellula d'Orbigny, 1837
• Cyerce antillensis Engel, 1927
• Cyerce cristallina (Trinchese, 1881)
• Cyerce graeca T. E. Thompson, 1988
• Cyerce iheringi Pelseneer, 1892 accepted as Cyerce cristallina (Trinchese, 1881)
• Elysia annedupontae Ortea, Caballer, Moro & Espinosa, 2005
• Elysia cauze Er. Marcus, 1957
• Elysia cyanea Mamo in Caruana, 1867 accepted as Thuridilla hopei (Vérany, 1853)
• Elysia fezi Vilella, 1968 (taxon inquirendum)
• Elysia flava Verrill, 1901
• Elysia fusca Philippi, 1844 accepted as Elysia viridis (Montagu, 1804)
• Elysia gordanae T. E. Thompson & Jaklin, 1988 accepted as Elysia margaritae Fez, 1962
• Elysia grandifolia Kelaart, 1858
• Elysia hetta Perrone, 1990
• Elysia manriquei Ortea & Moro, 2009
• Elysia margaritae Fez, 1962
• Elysia marginata (Pease, 1871)
• Elysia marmorata Cantraine, 1835 accepted as Elysia viridis (Montagu, 1804)
• Elysia minuta Sars M., 1835 accepted as Elysia viridis (Montagu, 1804)
• Elysia ornata (Swainson, 1840)
• Elysia pagenstecheri Marcus Ev., 1982 accepted as Elysia viridis (Montagu, 1804)
• Elysia papillosa A. E. Verrill, 1901
• Elysia rubeni Martín-Hervás, Carmona, K. R. Jensen, Licchelli, Vitale & Cervera, 2020
• Elysia splendida Grube, 1861 accepted as Thuridilla hopei (Vérany, 1853)
• Elysia subornata A. E. Verrill, 1901
• Elysia timida (Risso, 1818)
• Elysia tomentosa K. R. Jensen, 1997
• Elysia translucens Pruvot-Fol, 1957
• Elysia viridis (Montagu, 1804)
• Elysia viridis var. lactea Bergh, 1880 accepted as Elysia timida (Risso, 1818)
• Elysia viridis var. olivacea Jeffreys, 1869 accepted as Elysia viridis (Montagu, 1804)
• Ercolania coerulea Trinchese, 1892
• Ercolania costai Pruvot-Fol, 1951 accepted as Ercolania coerulea Trinchese, 1892
• Ercolania funerea (A. Costa, 1867) accepted as Ercolania viridis (A. Costa, 1866)
• Ercolania lozanoi Ortea, 1982
• Ercolania nigra (Lemche, 1935)
• Ercolania pancerii Trinchese, 1872 accepted as Ercolania viridis (A. Costa, 1866)
• Ercolania selva Ortea & Espinosa, 2001
• Ercolania siottii Trinchese, 1872 accepted as Ercolania viridis (A. Costa, 1866)
• Ercolania trinchesii Pruvot-Fol, 1951 accepted as Placida cremoniana (Trinchese, 1892)
• Ercolania uziellii Trinchese, 1872 accepted as Ercolania viridis (A. Costa, 1866)
• Ercolania viridis (A. Costa, 1866)
• Hermaea bifida (Montagu, 1816)
• Hermaea boucheti Cervera, Garcia-Gomez & Ortea, 1991
• Hermaea brevicornis Costa A., 1867 accepted as Placida dendritica (Alder & Hancock, 1843)
• Hermaea cantabra Caballer & Ortea, 2015
• Hermaea carminis Fez, 1962 accepted as Placida cremoniana (Trinchese, 1892)
• Hermaea conejera Ortea, Moro & Caballer, 2016
• Hermaea cremoniana Trinchese, 1892 accepted as Placida cremoniana (Trinchese, 1892)
• Hermaea cruciata Gould, 1870
• Hermaea dendritica (Alder & Hancock, 1843) accepted as Placida dendritica (Alder & Hancock, 1843)
• Hermaea hancockii Trinchese, 1877 accepted as Hermaea bifida (Montagu, 1816)
• Hermaea lutescens Costa A., 1866 accepted as Placida dendritica (Alder & Hancock, 1843)
• Hermaea orbicularis Costa A., 1866 accepted as Placida dendritica (Alder & Hancock, 1843)
• Hermaea ornata MacFarland, 1966 accepted as Placida dendritica (Alder & Hancock, 1843)
• Hermaea paucicirra Pruvot-Fol, 1953
• Hermaea polychroma Hesse, 1872 accepted as Hermaea variopicta (A. Costa, 1869)
• Hermaea saronica T. E. Thompson, 1988 accepted as Placida saronica (T. E. Thompson, 1988)
• Hermaea variopicta (A. Costa, 1869)
• Hermaea venosa Lovén, 1844 accepted as Placida dendritica (Alder & Hancock, 1843)
• Hermaea viridis (Trinchese, 1874) accepted as Placida viridis (Trinchese, 1874)
• Hermaea viridis Deshayes, 1857 accepted as Caliphylla viridis (Deshayes, 1857)
• Hermaeina maculosa Trinchese, 1874 accepted as Aplysiopsis elegans Deshayes, 1853
• Hermaeopsis variopicta Costa A., 1869 accepted as Hermaea variopicta (A. Costa, 1869)
• Jenseneria borgninii (Trinchese, 1896) accepted as Mourgona borgninii (Trinchese, 1896)
• Laura tardy Trinchese, 1874 accepted as Placida tardyi (Trinchese, 1874)
• Laura viridis Trinchese, 1874 accepted as Placida viridis (Trinchese, 1874)
• Limapontia capitata (O. F. Müller, 1774)
• Limapontia cornuta Giard, 1873 accepted as Limapontia senestra (Quatrefages, 1844)
• Limapontia depressa Alder & Hancock, 1862
• Limapontia depressa olivaria Gascoigne, 1978 accepted as Limapontia depressa Alder & Hancock, 1862
• Limapontia nigra G. Johnston, 1835 accepted as Limapontia capitata (O. F. Müller, 1774)
• Limapontia senestra (Quatrefages, 1844)
• Lobiancoia cristallina Trinchese, 1881 accepted as Cyerce cristallina (Trinchese, 1881)