Mollusca Linnaeus, 1758 - molluscs see Phylum Mollusca Linnaeus, 1758
   Gastropoda Cuvier, 1795 see Class Gastropoda Cuvier, 1795
     Clade Vetigastropoda Salvini-Plawen, 1980 see Order Vetigastropoda Salvini-Plawen, 1980
       Superfamily †Porcellioidea Koken, 1895
         Family †Porcelliidae Koken, 1895
           1 Subfamily †Porcelliinae Koken, 1895
           2 Subfamily †Agnesiinae Knight, 1956