Genus:
Discus >
Family:
Discidae >
Superfamily:
Punctoidea >
Infraorder:
[unassigned] Helicina >
Suborder:
Helicina >
Order:
Stylommatophora >
Superorder:
Eupulmonata >
Subterclass:
Tectipleura >
Infraclass:
Euthyneura >
Subclass:
Heterobranchia >
Class:
Gastropoda >
Phylum:
Mollusca >
Kingdom:
Animalia >
Unranked:
Biota >