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Metridioidea
Metridioidea is a superfamily of sea anemones in the order Actiniaria. Families in the superfamily Metridioidea include: * Family Acontiophoridae * Family Acricoactinidae * Family Actinoscyphiidae * Family Aiptasiidae * Family Aiptasiomorphidae * Family Aliciidae Aliciidae is a family of sea anemones, comprising the following genera: * '' Alicia'' Johnson, 1861 * '' Cradactis'' McMurrich, 1893 * '' Lebrunia'' Duchassaing de Fonbressin & Michelotti, 1860 * ''Phyllodiscus ''Phyllodiscus'' is a monotypic ... * 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Anemones
Sea anemones are a group of predatory marine invertebrates of the order Actiniaria. Because of their colourful appearance, they are named after the ''Anemone'', a terrestrial flowering plant. Sea anemones are classified in the phylum Cnidaria, class Anthozoa, subclass Hexacorallia. As cnidarians, sea anemones are related to corals, jellyfish, tube-dwelling anemones, and '' Hydra''. Unlike jellyfish, sea anemones do not have a medusa stage in their life cycle. A typical sea anemone is a single polyp attached to a hard surface by its base, but some species live in soft sediment, and a few float near the surface of the water. The polyp has a columnar trunk topped by an oral disc with a ring of tentacles and a central mouth. The tentacles can be retracted inside the body cavity or expanded to catch passing prey. They are armed with cnidocytes (stinging cells). In many species, additional nourishment comes from a symbiotic relationship with single-celled dinoflagellates, with zooxa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
