[Kingdom] Animalia Linnaeus, 1758 - animals Grade Enterozoa Grade Cœlomata Phylum Mollusca Linnaeus, 1758 - molluscs Branch Eucephala Grade Echinoglossa Class Gastropoda Cuvier, 1795 - snails and slugs Grade Cochlides Order Pulmonata Cuvier, 1814 Genus Limnæus Agassiz, 1846