Coelenterates (Phylum Coelenterata or Cnidaria) include jellyfish, anemones, corals, and hydras. The phylum is characterized by a gelatinous body, tentacles, and stinging cells called nemadocysts. Most species are found in marine waters, but some occur in brackish or even fresh water.
nas.er.usgs.gov/taxgroup/Coelenterates/ nas.er.usgs.gov/taxgroup/Coelenterates/
Jellyfish - Wikipedia, the free encyclopedia
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Jellyfish (also known as jellies or sea jellies ) are free-swimming members of the phylum Cnidaria. Jellyfish have several different morphologies that represent several different cnidarian classe...
en.wikipedia.org/wiki/Jellyfish
Cnidaria - Wikipedia, the free encyclopedia
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Cnidaria (pronounced /naɪˈdɛəriə/ with a silent c ) is a phylum containing over 9,000 species of animals found exclusively in aquatic, mostly marine, environments. Their distinguishing featur...
en.wikipedia.org/wiki/Cnidaria
Sea anemones, corals, jellyfish, sea pens, hydra ... Hyman, L. H. 1956. Morphology of living coelenterates. Pp. F10-F20 in R. C. Moore (ed.) Treatise on Invertebrate Paleontology: Part F, Coelenterata. Geological Society of America and University of Kansas Press.
tolweb.org/cnidaria
Corals belong to a group or phylum that includes hydras, jellyfish, and sea anemones called coelenerates. They are frequently symbiotic. This means that it and another living thing live off of each other without one harming the other. ... Jellyfish & Corals- Coelenterates...
www.virted.org/Animals/Coral.html
Marine Life Marine Biology Fish Identification Cayman Islands Phylum Coelenterata - Jellyfish & Coral Explore the waters of the Cayman Islands, scuba dive, scuba diving, scuba classes, scuba instruction, scuba training, scuba instructor, scuba shop, scuba travel, learn diving, photography, travel, cancun, cozumel, cayman, ...
www.exploreuw.com/fish_info_01_colentrata.html
Many coelenterates of today resemble those early relatives that existed millions of years ago. Characteristics of Coelenterates; Jellyfish and their relatives are not true fish. All fish are vertebrates, or animals with backbones.
teacher.scholastic.com/activities/explorations/squid/li... teacher.scholastic.com/activities/explorations/squid/libraryarticle.asp?ItemID=212&SubjectID=116&categoryID=5
(Medical Journal of Australia) Fatal envenomation by jellyfish causing Irukandji syndrome ... The Irukandji syndrome was named in 1952.1 It is the set of severe systemic symptoms that occur some 30 minutes after some jellyfish stings.2,3 The only species so far identified as causing the syndrome is Carukia barnesi,
www.mja.com.au/public/issues/177_07_071002/fen10297_fm.... www.mja.com.au/public/issues/177_07_071002/fen10297_fm.html
Cnidaria (Coelenterates, such as jellyfish and sea anemones) ... Jellyfish (including sea nettles) ... For jellyfish stings sustained in tropical waters, vinegar rinse followed by seawater rinse can be used. Fresh water should not be used because it can activate undischarged nematocysts.
www.merck.com/mmpe/sec21/ch325/ch325f.html
The Scyphozoa class contains true jellyfish. In the United States, true jellyfish are the most common Cnidaria species to cause envenomation. Sea nettles Chrysaora species and Cyanea species are located along the Atlantic coast, with a high concentration near the Chesapeake Bay.
emedicine.medscape.com/article/769538-overview