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Liponema
''Liponema'' is a genus of sea anemones, in the family Liponematidae. Characteristics Members of this genus have a wide base and a short, smooth column. The tentacles are short and very numerous, covering the whole oral disc. Each tentacle has a sphincter at its base which, when it contracts, causes the tentacle to be shed. The siphonoglyphs are well developed and the mesenteries are in perfect pairs. The cnidocytes consist of spirocysts, basitrichs and microbasic p-mastigophors.''Liponema'' KU Natural History Museum. Retrieved 2011-09-09. Species The following are recognized in the World Register of Marine Species: *'' |
Actinioidea
Actinioidea is a superfamily of sea anemones in the order Actiniaria. Families classified in the superfamily Actinioidea include:Rodríguez, E., Barbeitos, M. S., Brugler, M.R., Crowley, L. M., Grajales, A., Gusmão, L., Häussermann, V., Reft, A. & Daly, M. (2104). Hidden among sea anemones: The first comprehensive phylogenetic reconstruction of the order Actiniaria (Cnidaria, Anthozoa, Hexacorallia) reveals a novel group of hexacorals. * Family Actiniidae * Family Actinodendridae * Family Andresiidae * Family Capneidae * Family Condylanthidae * Family Haloclavidae * Family Homostichanthidae * Family Iosactinidae * Family Limnactiniidae * Family Liponematidae * Family Minyadidae * Family Oractinidae * Family Phymanthidae * Family Preactiniidae * Family Ptychodactinidae * Family Stichodactylidae * Family Thalassianthidae Thalassianthidae is a family of sea anemones that contains the genera ''Actineria'', ''Cryptodendrum,'' ''Heterodactyla'', and ''Thalassianthus''.World ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Anemone
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 (genus), Hydra''. Unlike jellyfish, sea anemones do not have a Jellyfish#Life history and behavior, medusa stage in their life cycle. A typical sea anemone is a single polyp (zoology), 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 sy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
