Eukaryota  >  Metazoa  >  Echinodermata  >  Ophiuroidea

Order	Family	Genus	Species
Amphilepidida	16	259	1630
Euryalida	4	53	190
Oegophiurida	0	0	0
Ophioleucida	1	0	51
Ophioscolecida	1	0	18