Metridioidea
Metridioidea is a superfamily of sea anemones in the order Actiniaria. Members of this clade live in shallow subtropical waters worldwide.
List of Families
Families in the superfamily Metridioidea include:- Family Acontiophoridae
- Family Acricoactinidae
- Family Actinoscyphiidae
- Family Aiptasiidae
- Family Aiptasiomorphidae
- Family Aliciidae
- Family Amphianthidae
- Family Andvakiidae
- Family Antipodactinidae
- Family Bathyphelliidae
- Family Boloceroididae
- Family Diadumenidae
- Family Gonactiniidae
- Family Halcampidae
- Family Haliactinidae
- Family Hormathiidae
- Family Isanthidae
- Family Kadosactinidae
- Family Metridiidae
- Family Nemanthidae
- Family Nevadneidae
- Family Octineonidae
- Family Ostiactinidae
- Family Phelliidae
- Family Sagartiidae
- Family Sagartiomorphidae
- Family Spongiactinidae