WordNet: Opisthobranchia, subclass Opisthobranchia

gastropods having the gills when present posterior to the heart and having no operculum: includes sea slugs; sea butterflies; sea hares

• hypernym class

• member holonym Gasteropoda, Gastropoda, class Gasteropoda, class Gastropoda

Opisthobranchia

• (suomi) takakiduskotilot (synonyymi)

subclass Opisthobranchia

• (suomi) takakiduskotiloiden alaluokka (synonyymi)