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