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
Stylommatophora Preferred
Coeliaxidae Pilsbry, 1907 Synonym
Coelociidae H. Nordsieck, 1986
Megalobulimidae Leme 1973
Microceramidae Pilsbry, 1904
Daudebardiidae Kobelt, 1906
Solaropsidae H. Nordsieck, 1986
Buliminidae Kobelt 1880
Otoconchidae Cockerell, 1893
Amphibulimidae P. Fischer, 1873
Bulimulidae Tryon, 1867
Cionellidae L. Pfieffer, 1879
Ammonitellidae Pilsbry, 1930
Systrophiidae Thiele, 1926
Odontostomidae Pilsbry et Vanatta, 1898
Eulotidae Möllendorff, 1898
Cerastuidae Wenz, 1930
Acanthinulidae Steenberg, 1917
Patulidae Tryon, 1866
Helicellidae H. Adams & A. Adams, 1855


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