Sometimes taxonomists create new names for groups that already have a name. They may do this because they are unaware of the original name, or they may think the organism before them belongs to a different group when in fact it does not. If two or more names are found to apply to the same group, they are considered synonyms. In most cases, the first name takes priority and is considered to be the valid or accepted name. However, there can be exceptions, and it's not always easy to determine which of a series of synonyms should be considered valid or accepted. Here we list the synonyms provided to EOL by our classification partners. We also include other versions of the name that most likely refer to the same group, for example, misspellings in the literature or different variations of the authorship associated with the name.

Preferred marks the preferred name from each source.

Integrated Taxonomic Information System (ITIS)

Name Relationship
Sepia Linnaeus, 1758 Preferred
Acanthosepion Rochebrune, 1884 Junior synonym
Amplisepia Iredale, 1926
Andreasepia Grimpe, 1922
Tenuisepia Cotton, 1932
Spathidosepion Rochebrune, 1884
Rhombosepion Rochebrune, 1884
Mesembrisepia Iredale, 1926
Lophosepion Rochebrune, 1884
Glyptosepia Iredale, 1926
Decorisepia Iredale, 1926
Crumenasepia Iredale, 1926
Blandosepia Iredale, 1940
Ascarosepion Rochebrune, 1884
Ponderisepia Iredale, 1926
Sepia (Eusepia) Naef, 1923
Sepia (Fiscisepia) Iredale, 1926
Sepia (Parasepia) Naef, 1923
Sepia (Platysepia) Naef, 1923

World Register of Marine Species (WoRMS)

Name Relationship
Sepia Linnaeus, 1758 Preferred
Sepia zebrina Risso, 1854 Synonym
Sepia italica Risso, 1854
Sepia bartletti (Iredale, 1954)
Sepia baxteri (Iredale, 1940)
Sepia dannevigi Berry, 1918
Sepia misakiensis Wülker, 1910
Sepia orbigniana (Férussac, 1826)
Sepia ramani Neethiselvan, 2001
Sepia rupellaria de Férussac & d'Orbigny, 1835
Sepia andreanoides Hoyle, 1885
Sepia subaculeata Sasaki, 1914
Sepia filliouxi Lafont, 1869
Sepia mediterranea Ninni, 1885
Sepia rouxi d'Orbigny, 1841
Sepia octopodia Linnaeus 1758
Sepia exsignata Barnard, 1962
Sepia winckworthi Adam, 1939
Sepia (Acanthosepion) Rochebrune, 1884
Sepia (Rhombosepion) Rochebrune, 1884
Sepia (Anomalosepia) Khromov, 1987
Sepia (Doratosepion) Rochebrune, 1884
Sepia (Hemisepius) Steenstrup, 1875
Sepia (Sepia) Linnaeus, 1758
Sepia ursulae Cotton, 1929
Sepia hulliana Iredale, 1926
Sepia koettlitzi Hoyle and Standen, 1901
Sepia singalensis Goodrich, 1896
Sepia framea Ortmann, 1891
Sepia natalensis Massy, 1925
Sepia pelagica Bosc, 1802
Sepia media Linnaeus, 1758
Sepia sepiola Linnaeus, 1758
Sepia bisserialis Vérany, 1851
Sepia fischeri Lafont, 1871
Sepia loligo Linnaeus 1758
Sepia octopus Gmelin 1791
Sepia polypus Oken, 1815
Sepia rubens Philippi, 1844
Sepia rugosa Bosc, 1792
Sepia barffi Curtiss, 1938

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