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Topic: Scyphozoa

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In the News (Mon 22 Jul 19)

 [No title]   (Site not responding. Last check: 2007-10-08)
Scyphozoa - Aurelia - The scyphistome stage in the life cycle of the common jelly fish, Aurelia.
Scyphozoa - Aurelia - Detail of the central region of the bell of the medusa of the common jelly fish, Aurelia.
Scyphozoa - Aurelia - Medusa of the common jelly fish, Aurelia.
biodidac.bio.uottawa.ca /thumbnails/searchresults.htm?formattype=photo&phylum=Cnidaria   (147 words)

 Cnidaria -> Class Scyphozoa on Encyclopedia.com 2002   (Site not responding. Last check: 2007-10-08)
Cnidarians of class Scyphozoa have a predominant jellyfish stage.
Stalked jellyfish, the Stauromedusae, are unusual members of the Scyphozoa; they are found attached to seaweed, especially in cooler marine habitats.
Systematics and Biogeography of the Jellyfish Aurelia labiata (Cnidaria: Scyphozoa).
www.encyclopedia.com /html/section/Cnidaria_ClassScyphozoa.asp   (441 words)

 Published articles   (Site not responding. Last check: 2007-10-08)
Silveira, F.L. da and A.C. Stephanoscyphistoma corniformis (Komai, 1936) (Cnidaria, Scyphozoa, Coronatae) from the North Coast of São Paulo, Brazil.
Polyps of the families Atorellidae and Nausithoidae (Scyphozoa: Coronatae) new to the Brazilian fauna.
Morandini, A.C. Deep-Sea medusae (Cnidaria: Cubozoa, Hydrozoa and Scyphozoa) from the coast of Bahia (western South Atlantic, Brazil).
www.ib.usp.br /~acmorand/articles.htm   (449 words)

 Olympus MIC-D: Darkfield Gallery - Aurelia Ephyra-Stage Jellyfish
Members of the jellyfish in the class Scyphozoa undergo a complex life cycle including a larval medusa or ephyra stage.
Other body parts such as the manubrium and the arms are common to both larval ephyrae and mature medusas in the Scyphozoa species.
The rhopalia are eight sensory organs that are evenly spaced around the fringe of the bell of both stages.
www.olympusmicro.com /micd/galleries/darkfield/aureliaephyra.html   (316 words)

 Scyphozoa - Bibliography   (Site not responding. Last check: 2007-10-08)
Impact of Aurelia aurita medusae (Cnidaria, Scyphozoa) on standing stock and community composition of mesoplankton in the Kiel Bight (western Baltic Sea).
Gershwin, L.A. Systematics and biogeography of the jellyfish Aurelia labiata (Cnidaria: Scyphozoa).
Larson, R.J. Pelagic scyphomedusae (Scyphozoa: Coronatae and Semaeostomeae) of the Southern Ocean.
www.aquamarine.unsw.edu.au /tS/Resources/Bibliography.html   (1435 words)

 André C. Morandini - Português   (Site not responding. Last check: 2007-10-08)
A preliminary phylogeny of Pelagiidae (Cnidaria, Scyphozoa), with new observations of
Pelagic Scyphozoa with a supplement to the first volume on hydromedusae.
On the occurrence of scyphozoan ephyrae (Cnidaria, Scyphozoa, Semaeostomeae and Rhizostomeae) in the southeastern Brazilian coast.
www.ib.usp.br /~acmorand/cyclepor.htm   (526 words)

The class Scyphozoa comprises the familiar jellyfishes, of major ecological significance in the plankton.
Some, including the sessile stauromedusae and the polyp stages of metagenetic free-swimming medusae, occur as part of the benthos.
The salinity regimes under which the various species of Scyphozoa normally occur in the region is indicated in the check list below using zones established under the "Venice System" (Symposium on the Classification of Brackish Waters, 1958).
hermes.mbl.edu /BiologicalBulletin/KEYS/INVERTS/3/Dscyphozoakeys.htm   (1173 words)

 MBL :: Inside the MBL :: Publications / Databases :: Keys to Marine Invertebrates
The medusae of Scyphozoa are unique in being typically much larger and anatomically more developed than the polyp.
Moreover, they are acraspedote, i.e., they lack a velum (a shelf of tissue projecting inward from the margin of the bell in hydromedusae and cubomedusae).
However, most specialists in the Cnidaria now recognize the Cubozoa as a distinct class (Cubozoa) because of their unique life cycles, morphology, and nematocyst complement.
www.mbl.edu /inside/what/news/publications/biobull/keys/3   (1227 words)

 [No title]
Cnidarians are diploblastic -- that is, the body and tentacles consist of two cell layers, the endoderm (sometimes referred to as the gastrodermis) and the ectoderm (the epidermis).
Indeed, the medusa dominates the life cycle of members of the classes Cubozoa and Scyphozoa (Cubozoa was formerly considered an order of Scyphozoa, and some specialists still consider it as such).
Werner, B. New investigations on systematics and evolution of the class Scyphozoa and the phylum Cnidaria.
ag.arizona.edu /tree/eukaryotes/animals/cnidaria/!Cnidaria.nex   (2126 words)

Class Scyphozoa: Aurelia, detail of the bell margin of the common jelly fish.
Class Scyphozoa: Aurelia,detail of the gastric pouch region of the common jelly fish
Class Scyphozoa: Aurelia, early and late strobila stage.
cas.bellarmine.edu /tietjen/images/cnidarians.htm   (541 words)

 eMedicine - Coelenterate and Jellyfish Envenomations : Article Excerpt by: Jeffrey Tucker, MD   (Site not responding. Last check: 2007-10-08)
The phylum is divided into 4 major classes: (1) Hydrozoa (Portuguese man-of-war and fire coral), (2) Scyphozoa (true jellyfish), (3) Cubozoa (box jellyfish), and (4) Anthozoa (sea anemones).
Sea nettles Chrysaora species and Cyanea species are located along the Atlantic coast, with a high concentration near the Chesapeake Bay.
Envenomations caused by organisms in the class Scyphozoa are less severe than those caused by Portuguese man-of-war.
www.emedicine.com /emerg/byname/coelenterate-and-jellyfish-envenomations.htm   (572 words)

 jellyfish --  Britannica Concise Encyclopedia - The online encyclopedia you can trust!
Any of about 200 described species of free-swimming marine cnidarians (in the classes Scyphozoa and Cubozoa), many of which have a bell-shaped body.
The term is also frequently applied to certain other cnidarians that have a medusoid (bell- or saucer-shaped) body form, as, for example, the...
Gaseous wastes are eliminated by diffusion, and solid wastes in dissolved or undissolved form pass out through an opening in the body wall that serves the dual purposes of food intake...
www.britannica.com /ebc/article-9368505?tocId=9368505   (833 words)

 Scyphozoa   (Site not responding. Last check: 2007-10-08)
It is then taken into the stomach and digested.
In the class Scyphozoa, reproduction can be asexual (as a polyp) or sexual (as a medusa).
The adult male will release sperm out of the mouth and into the water.
www.fcps.k12.va.us /westspringfieldhs/academic/science/bjewell/ocean/hamil/final/scy.shtml   (180 words)

 Systematics of Scyphozoa   (Site not responding. Last check: 2007-10-08)
These are sessile cup-shaped forms, and lack a free-swimming medusa.
The oral arms, often highly branched, have become fused in the center, closing off the central mouth and giving the jellyfish multiple mouth openings at the ends of the lateral arms.
The Cubozoa, or box jellies, were at one time included as an order of the Scyphozoa, but are now considered to be the sister group of the jellyfish.
www.ucmp.berkeley.edu /cnidaria/scyphozoasy.html   (118 words)

 Scyphozoa Terms and Definitions at www.MedicalGlossary.org
The class of true jellyfish, in the phylum CNIDARIA.
Sea Nettle, East Coast - Species of jellyfish, in the family Pelagiidae, order Semaeostomeae, class SCYPHOZOA.
Their painful sting is caused by a venom toxic to humans.
www.medicalglossary.org /cnidaria_scyphozoa_definitions.html   (175 words)

 e-Prints Soton - Bioluminescence of deep-sea coronate medusae (Cnidaria: Scyphozoa)   (Site not responding. Last check: 2007-10-08)
In the future it will become an official university service, but until then should be considered volatile.
Herring, P.J. and Widder, E.A. Bioluminescence of deep-sea coronate medusae (Cnidaria: Scyphozoa).
Full text of this item is not available from this server.
eprints.soton.ac.uk /14887   (387 words)

 Scyphozoa   (Site not responding. Last check: 2007-10-08)
Jellyfishes are members of the Class Scyphozoa, within the Phylum Cnidaria.
Members of this class, like most members of the phylum, exhibit metagenesis.
In the Scyphozoa, the medusa stage is the dominant stage of the life cycle.
tidepool.st.usm.edu /crswr/scyphozoan.html   (46 words)

 SDNHM - Hydrozoa, Scyphozoa, Anthozoa )Corals, Jellies, Sea fans)
SDNHM - Hydrozoa, Scyphozoa, Anthozoa)Corals, Jellies, Sea fans)
Class Anthozoa: Sea anemones, soft corals, gorgonians (sea fans), and stony corals
This species is harvested commercially for jewelry made of "fl coral."
www.oceanoasis.org /fieldguide/cnidaria.html   (476 words)

 Merriam-Webster Online
scyphozoa is one of more than 1,000,000 entries available at Merriam-WebsterUnabridged.com.
For More Information on "scyphozoa" go to Britannica.com
Get the Top 10 Search Results for "scyphozoa"
www.m-w.com /cgi-bin/dictionary?book=Dictionary&va=Scyphozoa   (55 words)

 Invertebrate Zoology (Z250) - Key to Study Images
Aurelia- medusa (52K) Cl. Scyphozoa, a 'true' jellyfish;
Aurelia- schyphistoma (53K) Cl. Scyphozoa; a polyp stage unique to Scyphozoa
Scyphozoa; a polyp stage unique to Scyphozoa that buds off larval medusae (ephyra)
biodb.biology.ualberta.ca /courses.hp/zool250/Labs/Image-key.htm   (1366 words)

 eMedicine - Coelenterate Envenomation : Article by Jeffrey Tucker, MD   (Site not responding. Last check: 2007-10-08)
Synonyms and related keywords: Hydrozoa, Portuguese man-of-war, fire corals, Scyphozoa, true jellyfish, Cubozoa, box jellyfish, Anthozoa, sea anemone
In the US: Coelenterate envenomations occur in coastal areas of the United States, most often during summer.
Envenomations by Scyphozoa (true jellyfish) are the most common.
www.emedicine.com /ped/topic426.htm   (1796 words)

 Question set 20   (Site not responding. Last check: 2007-10-08)
How does the life cycle of a scyphozoan differ from that of hydrozoans?
How does a single planula larva produce so many medusae in the Scyphozoa and Cubozoa?
How does a hydroid polyp differ from an anthozoan polyp?
www.umesci.maine.edu /biology/inv/q20.htm   (282 words)

 Molecular Evidence for Cryptic Species of Aurelia aurita (Cnidaria, Scyphozoa) -- Dawson and Jacobs 200 (1): 92 -- The ...
Molecular Evidence for Cryptic Species of Aurelia aurita (Cnidaria, Scyphozoa) -- Dawson and Jacobs 200 (1): 92 -- The Biological Bulletin
Organismic Biology, Ecology, and Evolution, University of California, 621 Charles E. Young Drive South, Los Angeles, California 90095-1606
Sun-compass migration by Aurelia aurita (Scyphozoa): population retention and reproduction in Saanich Inlet, British Columbia.
www.biolbull.org /cgi/content/full/200/1/92   (2589 words)

 Jellyfish: A Dangerous Ocean Organism of Hawaii
IMMEDIATE MEDICAL ATTENTION MAY BE REQUIRED as their stinging may bring about
Jellyfish are any planktonic marine member of a group of invertebrate animals composed of about 200 described species of the class Scyphozoa (phylum Cnidaria) or of the class Cubozoa, which was formerly considered an order of Scyphozoa.
The term, jellyfish, is also often used in referring to certain other cnidarians that have a medusoid (saucer- or bell-shaped) body form, such as hydromedusae, the siphonophores (including even the
www.aloha.com /~lifeguards/jelyfish.html   (1706 words)

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