? rugosum Kuroda & Ito, 1961 Dataset GBIF Backbone Taxonomy Rank UNRANKED Classification kingdom Animalia phylum Mollusca class Gastropoda family Epitoniidae genus Cirsotrema species Cirsotrema rugosum Name Homonyms ? rugosum Billings, 1857 ? rugosum Smith, 1817 ? rugosum Sandberger & Sandberger, 1851