Alphabetical Listing of Families within this Taxa Group:
family     Atollidae T4007810
family     Atorellidae T4072304
family     Cassiopeidae T4009148
family     Catostylidae T4009149
family     Cepheidae T4009150
family     Coronatae incertae sedis T4072798
family     Cyaneidae T4002139
family     Drymonematidae T4007900
family     Leptobrachidae T4072435
family     Linuchidae T4032535
family     Lobonemidae T4009165
family     Lychnorhizidae T4009166
family     Mastigiidae T4009151
family     Nausithoidae T4007811
family     Paraphyllinidae T4072305
family     Pelagiidae T4002138
family     Periphyllidae T4003370
family     Phacellophoridae T4007911
family     Rhizostomatidae T4009152
family     Stomolophidae T4009167
family     Ulmaridae T4002135