Subclass Opisthobranchia — synonyms, definition
1. subclass Opisthobranchia (Noun)
1 synonym
Opisthobranchia
1 definition
subclass Opisthobranchia (Noun) — Gastropods having the gills when present posterior to the heart and having no operculum: includes sea slugs; sea butterflies; sea hares.
1 type of
class
2 parts
Nudibranchia order Nudibranchia
4 parts of
Gasteropoda Gastropoda class Gasteropoda class Gastropoda