Helix circumfirmata Tryon, 1887 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Gastropoda order Stylommatophora family Gastrodontidae genus Poecilozonites species Poecilozonites circumfirmatus Name Homonyms Helix circumfirmata Redfield, 1853 Helix circumfirmata Tryon, 1887