Eukaryota  >  Metazoa  >  Cnidaria  >  Hydrozoa

Family	Genus	Species
Abylidae	5	10
Acaulidae	0	0
Aeginidae	7	17
Aequoreidae	4	60
Agalmatidae	9	27
Aglaopheniidae	9	105
Apolemiidae	1	15
Asyncorinidae	1	1
Asyncorynidae	0	0
Athorybiidae	1	3
Australomedusidae	0	0
Axoporidae	0	0
Balellidae	1	1
Blackfordiidae	1	3
Boeromedusidae	0	0
Bonneviellidae	0	0
Boreohydridae	1	1
Bougainvilliidae	10	79
Bythotiaridae	4	7
Calycopsidae	0	0
Campanulariidae	20	50
Campanulinidae	13	8
Candelabridae	2	9
Cirrholoveniidae	1	1
Cladocorynidae	2	5
Cladonematidae	4	23
Cladosarsiidae	0	0
Clathrozoellidae	1	1
Clathrozoidae	1	1
Clausophyidae	5	9
Clavidae	1	5
Clytiidae	1	39
Cordylophoridae	1	18
Corymorphidae	5	30
Corynidae	6	44
Cuninidae	3	25
Cytaeididae	2	21
Diphyidae	8	46
Dipleurosomatidae	2	2
Eirenidae	12	32
Erennidae	1	9
Eucodoniidae	0	0
Eudendriidae	2	45
Eutimidae	1	3
Forskaliidae	1	7
Geryoniidae	2	5
Halammohydridae	1	36
Haleciidae	4	60
Halicreatidae	5	10
Halimedusidae	2	3
Halopterididae	4	45
Hebellidae	5	15
Heterotentaculidae	0	0
Hippopodiidae	2	8
Hydractiniidae	11	75
Hydrichthyidae	1	5
Hydridae	1	33
Hydrocorynidae	1	2
Jeanbouilloniidae	0	0
Kirchenpaueriidae	3	11
Lafoeidae	7	53
Laodiceidae	6	20
Lineolariidae	0	0
Lovenellidae	0	1
Magapiidae	1	1
Malagazziidae	2	9
Margelopsidae	1	2
Melicertidae	1	2
Microhydrulidae	1	0
Milleporidae	1	56
Mitrocomidae	6	17
Moerisiidae	2	7
Monobrachiidae	1	3
Niobiidae	0	0
Obeliidae	2	39
Oceaniidae	5	46
Octocannoididae	0	0
Olindiasidae	1	1
Olindiidae	9	218
Orchistomatidae	1	3
Otohydridae	1	1
Palaequoreidae	0	0
Pandeidae	11	48
Paracorynidae	0	0
Pennariidae	1	5
Phialellidae	1	1
Phialuciidae	0	0
Physaliidae	1	10
Physophoridae	1	4
Plumaleciidae	1	1
Plumulariidae	10	77
Polyorchidae	3	4
Porpitidae	2	5
Prayidae	12	36
Proboscidactylidae	2	8
Protiaridae	0	0
Protohydridae	1	1
Pseudaeginidae	1	1
Pseudosolanderiidae	0	0
Ptilocodiidae	2	4
Ptychogastriidae	3	8
Pyrostephidae	2	7
Rathkeidae	2	4
Resomiidae	1	3
Rhizophysidae	2	4
Rhodaliidae	4	6
Rhopalonematidae	13	34
Rhysiidae	1	1
Rosalindidae	0	0
Sertularellidae	0	1
Sertulariidae	27	140
Similiclavidae	1	1
Solanderiidae	0	0
Solmarisidae	2	11
Solmundaeginidae	1	1
Sphaerocorynidae	4	13
Sphaeronectidae	1	5
Stylasteridae	28	117
Sugiuridae	1	1
Sympagohydridae	1	1
Symplectoscyphidae	1	1
Syntheciidae	2	11
Teclaiidae	0	0
Teissieridae	0	0
Tetraplatiidae	1	3
Thyroscyphidae	0	0
Tiarannidae	3	4
Tiaropsidae	2	5
Trichydridae	0	0
Tricyclusidae	0	0
Tubiclavoididae	1	1
Tubulariidae	5	29
Zancleidae	3	485
Zancleopsidae	1	8