Kingdom Animalia Linnaeus, 1758 - animals
Phylum Mollusca Linnaeus, 1758 - molluscs
Subphylum Cyrtosoma Runnegar & Pojeta Jr., 1974
see Phylum Mollusca Linnaeus, 1758
Class Gastropoda Cuvier, 1795 - snails and slugs
Subclass Pulmonata Cuvier, 1814 - land snails and slugs
see Order Pulmonata Cuvier, 1814
Order Stylommatophora Schmidt, 1855
see Infraorder Stylommatophora Schmidt, 1855
Genus Discus Fitzinger, 1833