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If you’re from another site or search engine, chances are the page you want to visit cannot be found because it has changed its name.
Here are the last pages to be renamed:

2026 update:

Callistephanus pallida (Madsen, 1970) is no longer accepted, the accepted name is Callistephanus dubia (Thomson, 1929).
Calmella cavolini (Vérany, 1846) is no longer accepted, the accepted name is Flabellina cavolini (Vérany, 1846).
Felimida krohni (Vérany, 1846) is no longer accepted, the accepted name is Rudmania krohni (Vérany, 1846).
Felimida purpurea (Risso, 1831) is no longer accepted, the accepted name is Rudmania purpurea (Risso, 1831).
Fimbriosthenelais minor (Pruvot & Racovitza, 1895) is no longer accepted, the accepted name is Sthenelais boa (Johnston, 1833).
Fjordia lineata (Lovén, 1846) is no longer accepted, the accepted name is Coryphella lineata (Lovén, 1846).
Paraflabellina gabinierei (Vicente, 1975) is no longer accepted, the accepted name is Flabellina gabinierei (Vicente, 1975).
Paraflabellina ischitana (Y. Hirano & T. E. Thompson, 1990) is no longer accepted, the accepted name is Flabellina ischitana Y. Hirano & T. E. Thompson, 1990.
Pseudoceros maximus-Type-A Lang, 1884 is no longer accepted, the accepted name is Pseudoceros maximus Lang, 1884.

2024-2025 update:

Coryphella lineata (Lovén, 1846) is no longer accepted, the accepted name is Fjordia lineata (Lovén, 1846).
Diplecogaster bimaculata bimaculata (Bonnaterre, 1788) is no longer accepted, the accepted name is Diplecogaster bimaculata (Bonnaterre, 1788).
Discodoris rosi Ortea, 1979 is no longer accepted, the accepted name is Gargamella rosi (Ortea, 1979).
Doris pseudoargus Rapp, 1827 is no longer accepted, the accepted name is Archidoris pseudoargus (Rapp, 1827).
Duvaucelia lineata (Alder & Hancock, 1848) is no longer accepted, the accepted name is Candiella lineata (Alder & Hancock, 1848).
Duvaucelia manicata (Deshayes, 1853) is no longer accepted, the accepted name is Candiella manicata (Deshayes, 1853).
Duvaucelia odhneri J. Tardy, 1963 is no longer accepted, the accepted name is Candiella odhneri (J. Tardy, 1963).
Duvaucelia striata (Haefelfinger, 1963) is no longer accepted, the accepted name is Candiella striata (Haefelfinger, 1963).
Goniodoris nodosa (Montagu, 1808) is no longer accepted, the accepted name is Okenia nodosa (Montagu, 1808).
Holothuria (Panningothuria) forskali Delle Chiaje, 1823 is no longer accepted, the accepted name is Holothuria forskali Delle Chiaje, 1824.
Lissa chiragra (Fabricius, 1775) is no longer accepted, the accepted name is Pisa chiragra (Fabricius, 1775).
Liocarcinus marmoreus (Leach, 1814) is no longer accepted, the accepted name is Polybius marmoreus (Leach, 1814).
Liocarcinus navigator (Herbst, 1794) is no longer accepted, the accepted name is Polybius navigator (Herbst, 1794).
Liocarcinus pusillus (Leach, 1816) is no longer accepted, the accepted name is Polybius pusillus (Leach, 1816).
Liparis liparis liparis (Linnaeus, 1766) is no longer accepted, the accepted name is Liparis liparis (Linnaeus, 1766).
Pusia tricolor (Gmelin, 1791) is no longer accepted, the accepted name is Ebenomitra tricolor (Gmelin, 1791).
Simnia patula (Pennant, 1777) is no longer accepted, the accepted name is Xandarovula patula (Pennant, 1777).
Treptacantha baccata (S.G.Gmelin, 1768) Orellana & Sansón, 2019 is no longer accepted, the accepted name is Gongolaria baccata (S.G.Gmelin, 1768) Molinari & Guiry, 2020.
Trinchesia ocellata Schmekel, 1966 is no longer accepted, the accepted name is Tenellia ocellata (Schmekel, 1966).
Tripterygion melanurum Guichenot, 1850 is no longer accepted, the accepted name is Tripterygion melanurus Guichenot, 1850.
Zeugopterus norvegicus (Günther, 1862) is no longer accepted, the accepted name is Phrynorhombus norvegicus (Günther, 1862).

2023 update:

Aulactinia verrucosa (Pennant, 1777) is no longer accepted, the accepted name is Bunodactis verrucosa (Pennant, 1777).
Cylista undata (Müller, 1778) is no longer accepted, the accepted name is Sagartia undata (Müller, 1778).
Swiftia pallida Madsen, 1970 is no longer accepted, the accepted name is Callistephanus pallida Madsen, 1970.

2022 update:

Bunodosoma biscayense (Fischer, 1874) is no longer accepted, the accepted name is Anthopleura biscayensis (Fischer, 1874).
Cystoseira tamariscifolia (Hudson) Papenfuss, 1950 is no longer accepted, the accepted name is Ericaria selaginoides (Linnaeus) Molinari & Guiry, 2020.
Fjordia lineata (Lovén, 1846) is no longer accepted, the accepted name is Coryphella lineata(Lovén, 1846).
Flabellina cavolini (Vérany, 1846) is no longer accepted, the accepted name is Calmella cavolini (Vérany, 1846).
Knoutsodonta inconspicua (Alder & Hancock, 1851) is no longer accepted, the accepted name is Atalodoris inconspicua (Alder & Hancock, 1851).
Knoutsodonta neapolitana (Delle Chiaje, 1841) is no longer accepted, the accepted name is Atalodoris neapolitana (Delle Chiaje, 1841).

2021 update:

Calmella cavolini (Vérany, 1846) is no longer accepted, the accepted name is Flabellina cavolini (Vérany, 1846).
Diplodus sargus cadenati de la Paz, Bauchot & Daget, 1974 is no longer accepted, the accepted name is Diplodus cadenati de la Paz, Bauchot & Daget, 1974.
Diporula verrucosa (Peach, 1868) is no longer accepted, the accepted name is Microporella verrucosa (Peach, 1868).
Dondice banyulensis Portmann & Sandmeier, 1960 is no longer accepted, the accepted name is Nemesignis banyulensis (Portmann & Sandmeier, 1960).
Facelina quatrefagesi (Vayssière, 1888) is no longer accepted, the accepted name is Caloria quatrefagesi (Vayssière, 1888).
Gobiusculus flavescens (Fabricius, 1779) is no longer accepted, the accepted name is Pomatoschistus flavescens (Fabricius, 1779).
Phrynorhombus norvegicus (Günther, 1862) is no longer accepted, the accepted name is Zeugopterus norvegicus (Günther, 1862).
Tritonia lineata Alder & Hancock, 1848 is no longer accepted, the accepted name is Duvaucelia lineata (Alder & Hancock, 1848).
Tritonia manicata Deshayes, 1853 is no longer accepted, the accepted name is Duvaucelia manicata (Deshayes, 1853).
Tritonia nilsodhneri Marcus Ev., 1983 is no longer accepted, the accepted name is Duvaucelia odhneri J. Tardy, 1963.
Tritonia striata Haefelfinger, 1963 is no longer accepted, the accepted name is Duvaucelia striata (Haefelfinger, 1963).

2020 update:

Cystoseira baccata (S.G.Gmelin) P.C.Silva, 1952 is no longer accepted, the accepted name is Treptacantha baccata (S.G.Gmelin) Orellana & Sansón, 2019.
Eubranchus farrani (Alder & Hancock, 1844) is no longer accepted, the accepted name is Amphorina farrani (Alder & Hancock, 1844).
Eubranchus pallidus (Alder & Hancock, 1842) is no longer accepted, the accepted name is Amphorina pallida (Alder & Hancock, 1842).
Ophioderma longicauda (Bruzelius, 1805) is no longer accepted, the accepted name is Ophioderma longicaudum (Bruzelius, 1805).
Pestarella tyrrhena (Petagna, 1792) is no longer accepted, the accepted name is Gilvossius tyrrhenus (Petagna, 1792).
Pteroeides spinosum (Ellis, 1764) is no longer accepted, the accepted name is Pteroeides griseum (Bohadsch, 1761).
Sagartia elegans (Dalyell, 1848) is no longer accepted, the accepted name is Cylista elegans (Dalyell, 1848).
Sagartia troglodytes (Price in Johnston, 1847) is no longer accepted, the accepted name is Cylista troglodytes (Price in Johnston, 1847).
Sagartiogeton undatus (Müller, 1778) is no longer accepted, the accepted name is Cylista undata (Müller, 1778).
Stelligera rigida (Montagu, 1814) is no longer accepted, the accepted name is Stelligera montagui Van Soest & Hooper, 2020.
Ulosa stuposa (Esper, 1794) is no longer accepted, the accepted name is Ulosa digitata (Schmidt, 1866).

2019 update:

Aiptasiogeton pellucidus (Hollard, 1848) is no longer accepted, the accepted name is Aiptasiogeton hyalinus (Delle Chiaje, 1822).
Chiton olivaceus Spengler, 1797 is no longer accepted, the accepted name is Rhyssoplax olivacea (Spengler, 1797).
Greilada elegans Bergh, 1894 is no longer accepted, the accepted name is Polycera elegans (Bergh, 1894).
Raphitoma concinna (Scacchi, 1836) is no longer accepted, the accepted name is Leufroyia concinna (Scacchi, 1836).
Swiftia pallida Madsen, 1970 is no longer accepted, the accepted name is Swiftia dubia (Thomson, 1929).
Tritia pygmaea (Lamarck, 1822) is no longer accepted, the accepted name is Tritia varicosa (W. Turton, 1825).
Turritella communis Risso, 1826 is no longer accepted, the accepted name is Turritellinella tricarinata (Brocchi, 1814).