Nihonia circumstricta (E.von Martens, 1901) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Gastropoda order Neogastropoda family Cochlespiridae genus Nihonia species Nihonia circumstricta Name Synonyms Pleurotoma circumstricta E.von Martens, 1901 Homonyms Nihonia circumstricta (E.von Martens, 1901)