Truncacteocina biplex (A.Adams, 1850) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Gastropoda order Cephalaspidea family Cylichnidae genus Truncacteocina species Truncacteocina biplex Name Synonyms Acteocina biplex (A.Adams, 1850) Bulla biplex A.Adams, 1850 Homonyms Truncacteocina biplex (A.Adams, 1850)