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.


Name Relationship
Camaenidae Preferred
Glorreugenia Synonym
Cristallopsis Rensch 1933
Möllendorffia Ancey 1887
Mollendorffia Ancey, 1887
Pleurondonte Sykes 1894
Camena Martens in Albers, 1860
Hydra Cox 1868
Polyodontes Agassiz 1846
Planospira Gray 1847
Genesella Tapparoni-Canefri 1889
Albertia Tapparoni-Canefri 1879
Angasella Angas 1864
Steganodera Kobelt 1879
Pleurodonta Férussac 1829
Camoena Ancey 1898
Polygratia Pilsbry in Tryon & Pilsbry, 1895
Chorites Paetel 1875
Polydontus Blainville 1826
Amphidomus Dickerson 1928
Cloritis Tapparoni-Canefri 1879
Orba Hall 1867
Xanthomelan Angas 1864
Polidontes Deshayes 1832


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