Cnidaria

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Cnidaria

 [ni-dar´e-ah]
a phylum of marine invertebrates that includes sea anemones, hydras, jellyfish, and corals. See also coelenterata.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

Cnidaria

a subphylum of the phylum Coelenterata in some classifications, where the Ctenophora (sea gooseberries) form the other subphylum (see COELENTERATE). However, in more modern classifications the Ctenophora are given the status of a phylum, so that the organisms classified in the Cnidaria (hydroids, jellyfishes, sea anemones and corals) are the only organisms in the new phylum Coelenterata, thus making the term Cnidaria obsolete.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
Pringle, "Extensive differences in gene expression between symbiotic and aposymbiotic cnidarians," G3: Genes, Genomes, Genetics, vol.
These embryos are of uncertain affinities, but they may represent stem cnidarians (the phylum including "jellyfish," anemones, and corals) or even bilaterians (animals with bilateral symmetry).
The survival of zoanthids under low salinities is directly related to the ability of diluting the body fluids in cnidarians. These animals keep a condition of isosmolarity in relation to the medium (GATES; MAYFIELD, 2007), like the tropical zoanthid P.
Percent of Total Known Marine Species by Taxonomic Group CRUSTACEANS 19% MOLLUSKS 17% FISH 12% ALGAE 10% PROTOZOA 10% CNIDARIANS 5% ECHINODERMS 3% OTHER VERTEBRATES 2% OTHER INVERTEBRATES 22% Note: Table made from pie chart.
Studies of the biology of a symbiosis between the eastern oyster (Crassostrea virginica Gmelin) and an inquiline cnidarian, Eutima sp.
is the sudden acquisition, 543-538 million years ago, of hard external parts by all the animal phyla found today (except the sponges, comb jellies and cnidarians).
10:45 A PRELIMINARY REPORT ON IDENTIFYING CNIDARIANS USING MOLECULAR TECHNIQUES
Abstract: A suite of fossils collected from the Warsaw Formation (Mississippian) of Missouri includes brachiopods, bryozoans, cnidarians, poriferans, echinoderms, and chondrichthyan teeth.
Where the seabed consists of rocks, mobile fishing gear removes large epifaunal invertebrates (such as sponges, cnidarians, and bryozoans) and moves boulders along the bottom.