Opisthobranchia

	Mikko's Phylogeny Archive	Main Groups of Protostomes
	Opisthobranchia

After Parker, 1982

<==o OPISTHOBRANCHIA
   |--o CEPHALASPIDEA (pääkilpikotilot)
   |  |-- Acteonidae (kuplakotilot)
   |  |-- Ringiculidae
   |  |-- Hydatinidae [incl. Aplustridae]
   |  |-- Bullinidae 
   |  |-- Scaphandridae (venekotilot)
   |  |-- Philinidae (vaippakotilot)
   |  |-- Aglajidae
   |  |-- Gastroptridae
   |  |-- Diaphanidae
   |  |-- Notodiaphanidae
   |  |-- Bullidae (bullakotilot)
   |  |-- Atyidae [incl. Haminoeidae, Smaragdinellidae, Bullactidae]
   |  `-- Retusidae [incl. Volvulidae, Rhizoridae]
   |--o RUNCINOIDEA
   |  |-- Runcinidae
   |  `-- Ildicidae
   |--o ACOCHLIDIOIDEA
   |  |--o EUACOCHLIDIACEA
   |  |  |-- Acochlidiidae
   |  |  |-- Hedylopsidae
   |  |  |-- Microhedylidae
   |  |  `-- Platyhedylidae
   |  `--o PHILINOGLOSSACEA
   |     |-- Philinoglossidae
   |     `-- Plusculidae
   |--o SACCOGLOSSA [incl. Ascoglossa, Monostichoglossa] (pussikielikotilot)
   |  |-- Cylindrobullidae
   |  |-- Volvatellidae [incl. Arthessidae}
   |  |-- Juliidae [incl. Tamanovalvidae, Bertheliniidae]
   |  |-- Oxynoidae [incl. Lobigeridae]
   |  |-- Caliphyllidae [incl. Calliphyllidae, Phyllobranchidae, Polybranchiidae]
   |  |-- Stiligeridae [incl. Alderiidae, Hermaeidae, Oleidae, Limapontidae] (hermannikotilot)
   |  `-- Elysiidae [incl. Placobranchidae, Plakobranchidae]
   |--o ANASPIDEA [Aplysiacea] (merijänikset)
   |  |-- Akeridae [incl. Aceridae, Akeratidae]
   |  |-- Aplysiidae (merijänikset)
   |  |-- Dolabellidae
   |  |-- Dolabriferidae
   |  `-- Notarchidae
   |--o NOTASPIDEA [incl. Pleurobranchaea]
   |  |-- Umbraculidae
   |  |-- Tylodinidae
   |  `-- Pleurobranchidae
   `--+--o THECOSOMATA (siipikiduskotilot)
      |  |--o EUTHECOSOMATA
      |  |  |-- Limacinidae [incl. Spiratellidae]
      |  |  `-- Cavoliniidae [incl. Cuvieriidae]
      |  `--o PSEUDOTHECOSOMATA
      |     |-- Peraclidae [incl. Procymbuliidae]
      |     |-- Cymbuliidae
      |     `-- Desmopteridae
      |-- GYMNOSOMATA (siipijalkaiset)
      `-- NUDIBRANCHIA (paljaskiduskotilot)

Reference(s):

Parker, S. P. (ed.), 1982: Synopsis and classification of living organisms. Vols. 1 & 2
–McGrew-Hill Book Company