Helix cylindrica S.Studer, 1789 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Gastropoda order Stylommatophora family Chondrinidae genus Chondrina species Chondrina avenacea Name Homonyms Helix cylindrica J.E.Gray, 1821 Helix cylindrica S.Studer, 1789