Cnidarians
The phylum Cnidaria is made up of more than 9,000 living species, mostly marine animals. Corals, jellyfish, sea anemones, and sea fans are all cnidarians.
Cnidarians Encyclopedia Articles
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sea whip
Sea whip, any of several genera of corals of the order Gorgonacea (phylum Cnidaria), characterized by a long, whiplike growth and a variety of bright colours. The “whip” consists of a colony of tiny polyps...
organ-pipe coral
Organ-pipe coral, (genus Tubipora), any of a genus of marine animals of the class Anthozoa (phylum Cnidaria). The single known species, Tubipora musica, occurs on reefs in shallow waters of the Indian...
sea pansy
Sea pansy, any of certain colonial marine animals of the sea pen (q.v.) group (order Pennatulacea, phylum Cnidaria). Unlike true sea pens, sea pansies lie flat on the
tube anemone
Tube anemone, (genus Cerianthus), any of a group of invertebrate marine animals of the class Anthozoa (phylum Cnidaria) characterized by an elongated polyp (i.e., a hollow stalklike structure with a mouth...
sea fan
Sea fan, (genus Gorgonia), any member of a genus of invertebrate marine animals of the suborder Holaxonia (class Anthozoa, phylum Cnidaria). It is a variety of coral composed of numerous polyps—cylindrical...