Eukaryota  >  Metazoa  >  Mollusca  >  Gastropoda  >  Trochida

Family	Genus	Species
Areneidae	2	4
Calliostomatidae	7	44
Colloniidae	13	28
Liotiidae	2	3
Margaritidae	2	16
Phasianellidae	5	26
Skeneidae	6	14
Solariellidae	16	161
Tegulidae	7	49
Trochidae	56	268
Turbinidae	26	155