Relichna simplex (Locard, 1897) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Gastropoda order Cephalaspidea family Retusidae genus Relichna species Relichna simplex Name Synonyms Bulla simplex Locard, 1897 Homonyms Relichna simplex (Murdoch & Suter, 1906) Relichna simplex (Locard, 1897)