Eukaryota  >  Metazoa  >  Mollusca

Class	Order	Family	Genus	Species
Bivalvia	20	109	956	6977
Caudofoveata	2	4	10	60
Cephalopoda	8	57	173	1510
Gastropoda	21	478	4216	31920
Monoplacophora	1	1	5	9
Polyplacophora	2	19	79	410
Scaphopoda	2	11	16	59
Solenogastres	4	18	39	202