Etrema crassina (Angas, 1880) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Gastropoda order Neogastropoda family Clathurellidae genus Etrema species Etrema crassina Name Synonyms Clathurella crassina Angas, 1880 Pleurotoma parvula Reeve, 1845 Homonyms Etrema crassina (Angas, 1880)