Omphalotropis guamensis (L.Pfeiffer, 1857) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Gastropoda order Littorinimorpha family Assimineidae genus Omphalotropis species Omphalotropis guamensis Name Synonyms Hydrocena guamensis L.Pfeiffer, 1857 Homonyms Omphalotropis guamensis (L.Pfeiffer, 1857)