Diadema Kobelt, 1904 Dataset GBIF Backbone Taxonomy Rank GENUS Published in Iconogr. Land- u. Süssw. Moll., (N. F.) 11, 135. Classification kingdom Animalia phylum Mollusca class Gastropoda order Stylommatophora family Clausiliidae genus Diadema Name Homonyms Diadema Gray, 1825 Diadema Schumacher, 1817 Diadema Pease, 1868 Diadema Boisduval, 1832 Diadema K.-D.Kemp & T.B.B.Paddock, 1989 Diadema Diadema Doubleday, 1848