Cyclopecten thyrideus (Melvill, 1907) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Bivalvia order Pectinida family Propeamussiidae genus Parvamussium species Parvamussium thyrideum Name Homonyms Cyclopecten thyrideus (Melvill, 1907)