Hexacorallia [subclass]
(247 species)

Actiniaria [order] (20)

Actiniidae [family] (9)

Aiptasiidae [family] (2)

Aliciidae [family] (2)

Boloceroididae [family] (1)

Edwardsiidae [family] (1)

Hormathiidae [family] (1)

Isophelliidae [family] (2)

Phymanthidae [family] (1)

Stichodactylidae [family] (1)