Unreferenced type animal auto yes date December 2009 Expert subject Biology date November 2008 Taxobox name Jellyfish image Haeckel Discomedusae 8.jpg image width image caption Discomedusae , from Ernst Haeckel s Kunstformen der Natur , 1904 regnum Animal ia phylum Cnidaria classis Scyphozoa subclassis Discomedusae Discomedusae is a taxonomic group subclass of the Scyphozoa of jellyfish . Gallery gallery Image Haeckel Discomedusae 18.jpg Image Haeckel Discomedusae 28.jpg Image Haeckel Discomedusae 88.jpg Image Haeckel Discomedusae 98.jpg gallery Category Scyphozoa Medusozoa stub fr Discomedusae it Discomedusae pt Discomedusae ... more details
Unreferenced date December 2009 AnimalsCleanup In biology , a medusa plural medusae is a form of cnidaria n in which the body is shaped like an umbrella, in contrast with polyp s. Medusae vary from bell shaped to the shape of a thin disk, scarcely convex above and only slightly concave below. The upper or aboral surface is called the exumbrella and the lower surface is called the subumbrella the mouth is located on the lower surface, which may be partially closed by a membrane extending inward from the margin called the velum . The digestive cavity consists of the gastrovascular cavity and radiating canals which extend toward the margin these canals may be simple or branching, and vary in number from few to many. The margin of the disk bears sensory organs and tentacle s as its said. In the class Hydrozoa , medusae are the sexual individuals of many species, alternating in the life cycle with asexual polyps. The medusa form of Hydrozoans are known as hydromedusae. The medusa form predominates in the classes Scyphozoa the common, colorful, large jellyfish and Cubozoa . Except for freshwater hydrozoa ns like Craspedacusta sowerbyi , these are the only classes in which medusae appear. German biologist Ernst Haeckel popularized medusae through his vivid illustrations, particularly in Kunstformen der Natur . Haeckel s medusae gallery Image Haeckel Discomedusae 8.jpg Discomedusae Image Haeckel Narcomedusae.jpg Narcomedusae Image Haeckel Discomedusae 18.jpg Discomedusae Image Haeckel Trachomedusae.jpg Trachomedusae Image Haeckel Discomedusae 28.jpg Discomedusae Image Haeckel Leptomedusae.jpg Leptomedusae Image Haeckel Peromedusae.jpg Peromedusae Image Haeckel Anthomedusae.jpg Anthomedusae Image Haeckel Stauromedusae.jpg Stauromedusae Image Haeckel Cubomedusae.jpg Cubomedusae modern Box jellyfish Cubozoa Image Haeckel Discomedusae 88.jpg Discomedusae Image Haeckel Discomedusae 98.jpg Discomedusae gallery DEFAULTSORT Medusa Biology Category Cnidarians hy ja ru ... more details
Automatic taxobox name Semaeostomeae image Sea nettles.jpg authority L. Agassiz, 1862 display children 1 Semaeostomeae literally flag mouth is an order of large jellyfish characterized by four long, frilly oral arm s flanking their quadrate mouths. The umbrella is domed with scalloped margins, and the gastrovascular system consists of four unbranched pouches radiating outwards from the central stomach there is no ring canal. ref name IZ cite book author Barnes, Robert D. year 1982 title Invertebrate Zoology publisher Holt Saunders International location Philadelphia, PA page 149 isbn 0 03 056747 5 ref Gallery gallery Image Haeckel Discomedusae 18.jpg Image Haeckel Discomedusae 28.jpg Image Haeckel Discomedusae 8.jpg Discomedusae . Plate from Ernst Haeckel s Kunstformen der Natur , 1904. gallery References reflist Ruppert, Edward E. and Fox, Richard S. 1988 . Seashore Animals of the Southeast , University of South Carolina Press, 273. ISBN 0 87249 535 3. Hayward, Peter J. and Ryland, John S. 1995 . Handbook of the Marine Fauna of North West Europe , Oxford University Press, 65. ISBN 0 19 854055 8. Bayha K., Dawson M. 2010 New family of allomorphic jellyfishes, Drymonematidae Scyphozoa, Discomedusae , emphasizes evolution in the functional morphology and trophic ecology of gelatinous zooplankton. Biological Bulletin 219 249 267. Category Semaeostomeae Medusozoa stub az Yast meduzlar ca Semeost mia de Fahnenquallen es Semaeostomeae fr Semaeostomeae it Semaeostomeae hu Z szl ssz j med z k no Skivemaneter pt Semaeostomeae ru sk Tanierovky fi Kiekkomeduusat uk Semaeostomeae ... more details
Taxobox name Rhopilema image Rhopilema nomadica.jpg image caption Rhopilema nomadica regnum Animal ia phylum Cnidaria classis Scyphozoa subclassis Discomedusae ordo Rhizostomae familia Rhizostomatidae genus Rhopilema genus authority Ernst Haeckel Haeckel , 1880 subdivision ranks Species subdivision R. esculentum R. hispidum R. nomadica Rhopilema is a genus of jellyfish es. Species include R. esculentum Bizen kurage Kishinouye 1891 http www.jjphoto.dk animal archive rhopilema esculenta.htm R. hispidum Hizen kurage Vanhoffen 1888 Rhopilema nomadica R. nomadica , Indo Pacific nomadic jellyfish a toxic Indo Pacific variety recently migrated the Mediterranean Sea Category Rhizostomeae Medusozoa stub es Rhopilema fr Rhopilema zh ... more details
Italic title Taxobox name Drymonema regnum Animal ia phylum Cnidaria subphylum Medusozoa classis Scyphozoa ordo Semaeostomeae familia Drymonematidae familia authority Bayha & Dawson, 2010 genus Drymonema genus authority Lendenfeld, 1887 Drymonema is a genus of jellyfish , placed in its own family, Drymonematidae . There are 3 species in this family. They are found in the Atlantic Ocean and Mediterranean Sea. ref cite journal author Keith M. Bayha & Michael N. Dawson year 2010 title New family of allomorphic jellyfishes, Drymonematidae Scyphozoa, Discomedusae , emphasizes evolution in the functional morphology and trophic ecology of gelatinous zooplankton journal The Biological Bulletin volume 219 issue 3 pages 249 267 pmid 21183445 ref Species Drymonema dalmatinum small Haeckel, 1880 small Drymonema gorgo small F. M ller, 1883 small Drymonema larsoni small Bayha & Dawson, 2010 small References Reflist External links http press.disl.org 1 10 11dryomena.htm Scientists discover a new jellyfish species and family pink meanie makes cover of Biological Bulletin Category Semaeostomeae Medusozoa stub ... more details
Image Haeckel Discomedusae 8.jpg thumb The 8th print, Discomedusae . The center and bottom center images are Desmonema annasethe the tentacles reminded Haeckel of his late wife s long flowing hair. Kunstformen der Natur German language German for Art Forms of Nature is a book of lithography lithographic and autotype prints by Germany German biologist Ernst Haeckel . Originally published in sets of ten between 1899 and 1904 and as a complete volume in 1904, it consists of 100 prints of various organisms, many of which were first described by Haeckel himself. Over the course of his career, over 1000 engraving s were produced based on Haeckel s sketch drawing sketch es and watercolor s many of the best of these were chosen for Kunstformen der Natur , translated from sketch to print by lithographer Adolf Giltsch. ref Breidbach, Visions of Nature , p. 253 ref According to Haeckel scholar Olaf Breidbach the editor of modern editions of Kunstformen , the work was not just a book of illustrations but also the summation of his view of the world. The over riding themes of the Kunstformen plates are symmetry and organization. The subjects were selected to embody organization, from the scale patterns of boxfish es to the spirals of ammonite s to the perfect symmetries of jellies and microorganisms, while images composing each plate are arranged for maximum visual impact. ref Breidbach, Visions of Nature , pp. 229 231 ref Among the notable prints are numerous radiolarian s, which Haeckel helped to popularize among amateur microscopists at least one example is found in almost every set of 10. Cnidaria also feature prominently throughout the book, including sea anemones as well as Siphonophorae , Semaeostomeae , and other medusa biology medusae . The first set included Desmonema annasethe now Cyanea jellyfish Cyanea annasethe , a particularly stunning jellyfish that Haeckel observed and described shortly after the death of his wife Anna Sethe. Kunstformen der Natur was influential ... more details
Image Haeckel Discomedusae 8.jpg thumb 300px The 8th plate from Ernst Haeckel s Kunstformen der Natur 1904 , depicting Discomedusae . This list of prehistoric medusozoans is an attempt to create a comprehensive listing of all Genus genera that have ever been included in the subphylum Medusozoa , excluding purely vernacular terms. The list includes all commonly accepted genera, but also genera that are now considered invalid, doubtful nomen dubium nomina dubia , or were not formally published nomen nudum nomina nuda , as well as synonym zoology junior synonyms of more established names, and genera that are no longer considered medusozoans. dynamic list Naming conventions and terminology Naming conventions and terminology follow the International Code of Zoological Nomenclature . Technical terms used include Synonym zoology Junior synonym A name which describes the same taxon as a previously published name. If two or more genera are formally designated and the type zoology type specimens are later assigned to the same genus, the first to be published in chronological order is the senior synonym, and all other instances are junior synonyms. Senior synonyms are generally used, except by special decision of the ICZN, but junior synonyms cannot be used again, even if deprecated. Junior synonymy is often subjective, unless the genera described were both based on the same type specimen. Nomen nudum Latin for naked name A name that has appeared in print but has not yet been formally published by the standards of the ICZN. Nomina nuda the plural form are invalid, and are therefore not italicized as a proper generic name would be. If the name is later formally published, that name is no longer a nomen nudum and will be italicized on this list. Often, the formally published name will differ from any nomina nuda that describe the same specimen. Nomen oblitum Latin for forgotten name A name that has not been used in the scientific community for more than fifty years after its original ... more details
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