Eukaryota  >  Metazoa  >  Cnidaria  >  Hydrozoa  >  Narcomedusae

Family	Genus	Species
Aeginidae	7	17
Cuninidae	3	24
Pseudaeginidae	1	1
Solmarisidae	2	11
Solmundaeginidae	1	1
Tetraplatiidae	1	3