Genus:
Berthella >
Family:
Pleurobranchidae >
Superfamily:
Pleurobranchoidea >
Order:
Pleurobranchida >
Superorder:
Nudipleura >
Subterclass:
Ringipleura >
Infraclass:
Euthyneura >
Subclass:
Heterobranchia >
Class:
Gastropoda >
Phylum:
Mollusca >
Kingdom:
Animalia >
Unranked:
Biota >