Lucernaria Haeckeli
''Lucernaria'' is a genus of cnidarians belonging to the family Lucernariidae. The species of this genus are found in Europe and America. Species: *''Lucernaria australis'' *''Lucernaria bathyphila'' *''Lucernaria haeckeli'' *''Lucernaria infundibulum'' *''Lucernaria janetae'' *''Lucernaria quadricornis'' *''Lucernaria sainthilairei'' *''Lucernaria sainthilarei'' *''Lucernaria walteri'' References

Lucernariidae Medusozoa genera {{medusozoa-stub ...
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Cnidaria
Cnidaria () is a phylum under kingdom Animalia containing over 11,000 species of aquatic animals found both in freshwater and marine environments, predominantly the latter. Their distinguishing feature is cnidocytes, specialized cells that they use mainly for capturing prey. Their bodies consist of mesoglea, a non-living jelly-like substance, sandwiched between two layers of epithelium that are mostly one cell thick. Cnidarians mostly have two basic body forms: swimming medusae and sessile polyps, both of which are radially symmetrical with mouths surrounded by tentacles that bear cnidocytes. Both forms have a single orifice and body cavity that are used for digestion and respiration. Many cnidarian species produce colonies that are single organisms composed of medusa-like or polyp-like zooids, or both (hence they are trimorphic). Cnidarians' activities are coordinated by a decentralized nerve net and simple receptors. Several free-swimming species of Cubozoa and Scyphozo ...
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