Informal group Opisthobranchia

Clade Cephalaspidea

  • Superfamily Bulloidea
    • Family Bullidae
       
  • Superfamily Diaphanoidea
    • Family Diaphanidae
    • Family Notodiaphanidae
       
  • Superfamily Haminoeoidea
    • Family Haminoeidae
    • Family Bullactidae
    • Family Smaragdinellidae
       
  • Superfamily Philinoidea
    • Family Philinidae
    • Family Aglajidae
    • Family Cylichnidae
    • Family Gastropteridae
    • Family Philinoglossidae
    • Family Plusculidae
    • Family Retusidae
       
  • Superfamily Runcinoidea
    • Family Runcinidae
    • Family Ilbiidae

Clade Thecosomata

  • Superfamily Cavolinioidea
    • Family Cavoliniidae
    • Family Limacinidae
    • Family Sphaerocinidae
       
  • Superfamily Cymbulioidea
    • Family Cymbuliidae
    • Family Desmopteridae
    • Family Peraclidae

Clade Gymnosomata

  • Superfamily Clionoidea
    • Family Clionidae
    • Family Cliopsidae
    • Family Notobranchaeidae
    • Family Pneumodermatidae
       
  • Superfamily Hydromyloidea
    • Family Hydromylidae
    • Family Laginiopsidae

Clade Aplysiomorpha (= Anaspidea)

  • Superfamily Aplysioidea
    • Family Aplysiidae
       
  • Superfamily Akeroidea
    • Family Akeridae

Group Acochlidiacea

  • Superfamily Acochlidioidea
    • Family Acochlidiidae
       
  • Superfamily Hedylopsoidea
    • Family Hedylopsidae
    • Family Ganitidae
    • Family Livorniellidae
    • Family Minicheviellidae
    • Family Parhedylidae
    • Family Tantulidae
       
  • Superfamily Palliohedyloidea
    • Family Palliohedylidae
       
  • Superfamily Strubellioidea
    • Family Strubelliidae
    • Family Pseudunelidae

Clade Sacoglossa

Subclade Oxynoacea

  • Superfamily Oxynooidea
    • Family Oxynoidae
    • Family Juliidae
    • Family Volvatellidae

Subclade Placobranchacea

  • Superfamily Placobranchoidea
    • Family Placobranchidae
    • Family Boselliidae
    • Family Platyhedylidae
       
  • Superfamily Limapontioidea
    • Family Limapontiidae
    • Family Caliphyllidae
    • Family Hermaeidae

Group Cylindrobullida

  • Superfamily Cylindrobulloidea
    • Family Cylindrobullidae

Clade Umbraculida

  • Superfamily Umbraculoidea
    • Family Umbraculidae
    • Family Tylodinidae

Clade Nudipleura

Subclade Pleurobranchomorpha

  • Superfamily Pleurobranchoidea
    • Family Pleurobranchidae

Subclade Nudibranchia

  • Unassigned to superfamily
    • Family Rhodopidae
Clade Euctenidiacea (= Holohepatica)
Subclade Gnathodoridacea
  • Superfamily Bathydoridoidea
    • Family Bathydorididae
Subclade Doridacea
  • Superfamily Doridoidea
    • Family Dorididae
    • Family Actinocyclidae
    • Family Chromodorididae
    • Family Discodorididae
       
  • Superfamily Phyllidioidea
    • Family Phyllidiidae
    • Family Dendrodorididae
    • Family Mandeliidae
       
  • Superfamily Onchidoridoidea
    • Family Onchidorididae
    • Family Corambidae
    • Family Goniodorididae
       
  • Superfamily Polyceroidea (= Phanerobranchiata Non Suctoria)
    • Family Polyceridae
    • Family Aegiretidae
    • Family Gymnodorididae
    • Family Hexabranchidae
    • Family Okadaiidae
Clade Dexiarchia (= Actenidiacea)
Clade Pseudoeuctenidiacea ( = Doridoxida)
  • Superfamily Doridoxoidea
    • Family Doridoxidae
Clade Cladobranchia ( = Cladohepatica)
  • Not assigned to a superfamily
    • Family Charcotiidae
    • Family Dironidae
    • Family Dotidae
    • Family Embletoniidae
    • Family Goniaeolididae
    • Family Heroidae
    • Family Madrellidae
    • Family Pinufiidae
    • Family Proctonotidae
Subclade Euarminida
  • Superfamily Arminoidea
    • Family Arminidae
    • Family Doridomorphidae
Subclade Dendronotida
  • Superfamily Tritonioidea
    • Family Tritoniidae
    • Family Aranucidae
    • Family Bornellidae
    • Family Dendronotidae
    • Family Hancockiidae
    • Family Lomanoridae
    • Family Phylliroidae
    • Family Scyllaeidae
    • Family Tethydidae
Subclade Aeolidida
  • Superfamily Flabellinoidea ( = Pleuroprocta)
    • Family Flabellinidae
    • Family Notaeolidiidae
       
  • Superfamily Fionoidea
    • Family Fionidae
    • Family Calmidae
    • Family Eubranchidae
    • Family Pseudovermidae
    • Family Tergipedidae
       
  • Superfamily Aeolidioidea
    • Family Aeolidiidae
    • Family Facelinidae
    • Family Glaucidae
    • Family Piseinotecidae

Return to: Systematics of Gastropoda.

 

Navanax inermis (Aglajidae), a sea slug off the coast of Santa Bar-
bara, California. Picture: Ed Bierman.
 

Sea angel (Clione limacina, Gymnosomata, Clionidae).
Picture: Russ Hopcroft (Arctic Ocean Diversity).
 

Lettuce Sea Slug (Elysia crispata, Sacoglossa, Placobranchidae).
Picture: Laszlo Ilyes (Source).
 

Sea slug Halgerda batangas (Nudibranchia, Dorididae) from Bali, In-
donesia. Picture: Alexander R. Jenner (Source).
 

Gas flame sea slug (Bonisa nakaza, Nudibranchia, Proctonotidae)
from South Africa. Picture: Seascapeza (Source).
 

Hermissenda crassicornis, a nudibranch (Nudibranchia, Glaucidae).
Picture: Matt Knoth (Source).