Cirsotrema crassilabrum (G.B.Sowerby II, 1844) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Gastropoda family Epitoniidae genus Opalia species Opalia crassilabrum Name Homonyms Cirsotrema crassilabrum (G.B.Sowerby II, 1844)