Thylacodes margaritaceus (Rousseau, 1844) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Gastropoda order Littorinimorpha family Vermetidae genus Thylacodes species Thylacodes margaritaceus Name Synonyms Serpulorbis margaritaceus (Rousseau, 1844) Vermetus margaritaceus Rousseau, 1844 Vermetus margaritarum Valenciennes, 1846 Homonyms Thylacodes margaritaceus (Rousseau, 1844)