Cnidaria


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Noun1.Cnidaria - hydrasCnidaria - hydras; polyps; jellyfishes; sea anemones; corals
Metazoa, subkingdom Metazoa - multicellular animals having cells differentiated into tissues and organs and usually a digestive cavity and nervous system
cnidarian, coelenterate - radially symmetrical animals having saclike bodies with only one opening and tentacles with stinging structures; they occur in polyp and medusa forms
polyp - one of two forms that coelenterates take (e.g. a hydra or coral): usually sedentary with a hollow cylindrical body usually with a ring of tentacles around the mouth; "in some species of coelenterate, polyps are a phase in the life cycle that alternates with a medusoid phase"
medusan, medusoid, medusa - one of two forms that coelenterates take: it is the free-swimming sexual phase in the life cycle of a coelenterate; in this phase it has a gelatinous umbrella-shaped body and tentacles
class Scyphozoa, Scyphozoa - coelenterates in which the polyp stage is absent or at least inconspicuous: jellyfishes
jellyfish - any of numerous usually marine and free-swimming coelenterates that constitute the sexually reproductive forms of hydrozoans and scyphozoans
class Hydrozoa, Hydrozoa - coelenterates typically having alternation of generations; hydroid phase is usually colonial giving rise to the medusoid phase by budding: hydras and jellyfishes
Actinozoa, Anthozoa, class Actinozoa, class Anthozoa - a large class of sedentary marine coelenterates that includes sea anemones and corals; the medusoid phase is entirely suppressed
phylum - (biology) the major taxonomic group of animals and plants; contains classes
References in periodicals archive ?
All four penguin species consumed true jellyfish, with 187 different Cnidaria species spotted in the videos.
Filum Cnidaria (knidliler, haslamlilar) uyeleri genelde denizlerde, cok az turu tatli sularda bulunan, hayat evrelerinde belirgin bir polimorfizm gorulen canlilar toplulugudur ve 5 sinifa (Hydrozoa, Scyphozoa, Staurozoa, Cubozoa, Anthozoa) ayrilir.
Cnidaria, Scleractinia, Siderastreidae, Siderastrea siderea (Ellis and Solander, 1786): Hartt Expedition and the first record of a Caribbean siderastreid in tropical Southwestern Atlantic.
Expressing the mystery and beauty of ocean life, Cnidaria Halitus harnesses the natural forces of the sun and the tides to produce 600,000 liters of potable water each day for the City of Santa Monica.
07 Cnidaria Echiura Glottidia pyramidata Sipuncula Tubificidae Total 100 100 Southern kingfish %F %N %W IRI Bony fishes 24.
Arthropoda had the highest number of taxa (161 taxa; mostly Crustacea), followed by Annelida (122; mostly Polychaeta), Mollusca (114; mostly Bivalvia and Gastropoda), Bryozoa (50), Echinodermata (43), Cnidaria, both Anthozoa and Hydrozoa (27), and other phyla with one to three taxa (Brachiopoda, Cephalorhyncha, Entoprocta, Nemertea, Platyhelminthes, Porifera, Sipuncula).
The 12th International Symposium on Fossil Cnidaria and Porifera will address corals and sponges through time and space, during the reef crisis in earth's history, bio-mineralisation, coral growth, biostrome forming and reef building from a micro-to macro scale.
Like corals and jellyfish, the sea anemone -- Nematostella vectensis -- is a member of the Cnidaria family, which is over 700 million years old.
They are cousins in the same phylum, Cnidaria, named for specialized stinging cells.