Bythiospeum spirata Geyer, 1904 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Gastropoda order Littorinimorpha family Moitessieriidae genus Bythiospeum species Bythiospeum diaphanoides Name Homonyms Bythiospeum spirata Geyer, 1904 Bythiospeum spirata Geyer, 1904