Eukaryota  >  Metazoa  >  Mollusca  >  Bivalvia  >  Unionida

Family	Genus	Species
Etheriidae	3	2
Hyriidae	13	60
Iridinidae	3	4
Margaritiferidae	5	18
Mutelidae	2	5
Mycetopodidae	7	11
Unionidae	157	878