Proctonotoidea is a superfamily of nudibranchs, shell-less marine gastropod molluscs or sea slugs, and the only member of the suborder Janolacea.
Families The following families are recognised in the superfamily Proctonotoidea: Family Curnonidae d’Udekem d’Acoz, 2017 Family Lemindidae Griffiths, 1985 Family Dironidae Eliot, 1910 Family Madrellidae Preston, 1911 Family Proctonotidae Gray, 1853 Family Janolidae Pruvot-Fol, 1933 Family ?Goniaeolididae Odhner, 1907
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