(Polycyathus) (Polycyathus) is a biological genus in the family Caryophylliidae and order Scleractinia.
Polycyathus andamanensis
Polycyathus atlanticus
Polycyathus difficilis
Polycyathus fulvus
Polycyathus furanaensis
Polycyathus fuscomarginatus
Polycyathus helenae
Polycyathus hodgsoni
Polycyathus hondaensis
Polycyathus isabela
Polycyathus marigondoni
Polycyathus muellerae
Polycyathus norfolkensis
Polycyathus octuplus
Polycyathus palifera
Polycyathus persicus
Polycyathus senegalensis
Polycyathus verrilli
Anomocora
Asterosmilia
Aulocyathus
Bathycyathus
Bourneotrochus
Caryophyllia
Catalaphyllia
Ceratotrochus
Cladocora
Coenocyathus
Coenosmilia
Colangia
Concentrotheca
Confluphyllia
Conotrochus
Crispatotrochus
Ctenella
Dactylotrochus
Dasmosmilia
Deltocyathus
Desmophyllum
Ericiocyathus
Euphyllia
Goniocorella
Gyrosmilia
Heterocyathus
Hoplangia
Labyrinthocyathus
Lochmaeotrochus
Lophelia
Montigyra
Nemenzophyllia
Nomlandia
Oxysmilia
Paraconotrochus
Paracyathus
Phacelocyathus
Phyllangia
Physogyra
Plerogyra
Polycyathus
Pourtalosmilia
Premocyathus
Rhizosmilia
Solenosmilia
Stephanocyathus
Sympodangia
Tethocyathus
Thalamophyllia
Trochocyathus
Vaughanella