Phylum Mollusca Linnaeus, 1758 - molluscs Subphylum Conchifera Gegenbauer, 1878 Class Gastropoda Cuvier, 1795 - snails and slugs Subclass Orthogastropoda Ponder & Lindberg, 1995 Superorder Caenogastropoda Cox, 1960 Order Sorbeoconcha Ponder & Lindberg, 1997 Suborder Murchisoniina Cox & Knight, 1960 see Superfamily Murchisonioidea Koken, 1896 1 Superfamily Loxonematoidea Koken, 1889