Phylum Mollusca Linnaeus, 1758 - molluscs
Class Gastropoda Cuvier, 1795 - snails and slugs
Subclass Divasibranchia Minichev & Starobogatov, 1975
Order Stylommatophora Schmidt, 1855
see Infraorder Stylommatophora Schmidt, 1855
(Helicid Sigmurethra)
Superfamily Helixarionoidea Bourguignat, 1883, orth. inval.
Family Helixarionidae Bourguignat, 1883, orth. inval.
see Family Helicarionidae Bourguignat, 1877
Subfamily Sesarinae Thiele, 1931
see Subfamily Helicarioninae Bourguignat, 1877
Genus Dendrotrochus Pilsbry, 1894
Subgenus Ponapea Baker, 1941