Mastonia crassula (E.von Martens, 1880) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Gastropoda family Triphoridae genus Mastonia species Mastonia crassula Name Synonyms Triforis crassula E.von Martens, 1880 Triphora crassula E.von Martens, 1880 Homonyms Mastonia crassula (E.von Martens, 1880)