English noun: Opisthobranchia | |||
1. | Opisthobranchia (animal) gastropods having the gills when present posterior to the heart and having no operculum: includes sea slugs; sea butterflies; sea hares | ||
Synonyms | subclass Opisthobranchia | ||
Broader (hypernym) | class | ||
Member holonym | Nudibranchia, order Nudibranchia | ||
Member meronym | class Gasteropoda, class Gastropoda, Gasteropoda, Gastropoda | ||