Family:
Hancockiidae >
Superfamily:
Dendronotoidea >
Suborder:
Cladobranchia >
Order:
Nudibranchia >
Superorder:
Nudipleura >
Subterclass:
Ringipleura >
Infraclass:
Euthyneura >
Subclass:
Heterobranchia >
Class:
Gastropoda >
Phylum:
Mollusca >
Kingdom:
Animalia >
Unranked:
Biota >