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Janolus fuscus 4.jpg
Close-up of the anterior half of a live individual of Janolus fuscus
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked): clade Heterobranchia
clade Euthyneura
clade Nudipleura
clade Nudibranchia
clade Dexiarchia
clade Cladobranchia
Family: Proctonotidae
Gray, 1853

See text


Janinae Gray, 1847 (inv.)
Veniliidae Chenu, 1859 (inv.)
Antiopidae Locard, 1886 (inv.)
Zephyrinidae Iredale & O'Donoghue, 1923
Janolidae Pruvot-Fol, 1933
Antiopellidae Odhner, 1934

Proctonotidae is a family of sea slugs, nudibranchs, marine gastropod molluscs, in the clade Euthyneura.

There are no subfamilies in Proctonotidae according to the taxonomy of the Gastropoda (Bouchet & Rocroi, 2005).


Genera in the family Proctonotidae include:[1][2]

Genera brought into synonymy
  • Antiopella Hoyle, 1902: synonym of Janolus Bergh, 1884
  • Janus Vérany, 1844: synonym of Janolus Bergh, 1884


  • Vaught, K.C. (1989). A classification of the living Mollusca. American Malacologists: Melbourne, FL (USA). ISBN 0-915826-22-4. XII, 195 pp
  • Costello, M.J.; Emblow, C.; White, R. (Ed.). (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50. Muséum national d'Histoire Naturelle: Paris, France. ISBN 2-85653-538-0. 463 pp