Pycnomphalus helicites (de Sowerby & Murchison, 1839) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Gastropoda family Pycnomphalidae genus Pycnomphalus species Platyschisma helicites Name Homonyms Pycnomphalus helicites (de Sowerby & Murchison, 1839)