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Coronamedusae
Coronamedusae is a subclass of jellyfish in the class Scyphozoa. It is the sister taxon of Discomedusae and contains about 50 named species, all included in the order Coronatae. Jellyfish in this subclass are either small medusae living in shallow marine environments, or large medusae living in the deep sea. The mouthparts of the members of this subclass are characterised by simple lips on a short manubrium as well as by robust marginal tentacles that arc away from the mouth. It is likely that these marginal tentacles are used to capture plankton, including crustaceans and small fish in the larger species. Coronatae Coronatae is the only order in this subclass, with around thirty-five species having been described, most of them deepwater jellyfish. The thimble jellyfish (''Linuche unguiculata'') is a tiny species, and one of the few from shallow tropical seas; It is a zooxanthellate species. Coronatids have a characteristic constriction, the coronal groove, part way down the bel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coronamedusae
Coronamedusae is a subclass of jellyfish in the class Scyphozoa. It is the sister taxon of Discomedusae and contains about 50 named species, all included in the order Coronatae. Jellyfish in this subclass are either small medusae living in shallow marine environments, or large medusae living in the deep sea. The mouthparts of the members of this subclass are characterised by simple lips on a short manubrium as well as by robust marginal tentacles that arc away from the mouth. It is likely that these marginal tentacles are used to capture plankton, including crustaceans and small fish in the larger species. Coronatae Coronatae is the only order in this subclass, with around thirty-five species having been described, most of them deepwater jellyfish. The thimble jellyfish (''Linuche unguiculata'') is a tiny species, and one of the few from shallow tropical seas; It is a zooxanthellate species. Coronatids have a characteristic constriction, the coronal groove, part way down the bel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Discomedusae
Discomedusae is a subclass of jellyfish in the class Scyphozoa. It is the sister taxon of Coronamedusae. Discomedusae contains about 155 named species and there are likely to be many more as yet undescribed. Jellyfish in this subclass are much more likely to have swarming events or form blooms than those in Coronamedusae. Discomedusae consists of two orders, Rhizostomae and Semaeostomeae. Rhizostomae Members of the order Rhizostomae are collectively known as "root-mouth jellies" and are very diverse. They do not have tentacles or other structures at the edge of the bell, instead they have eight oral arms which fuse together to form the manubrium, a central organ with the mouth at its tip, resembling an elephant's trunk. Some have numerous manubrial outgrowths, well-armed with cnidocytes and mucus-secreting cells; others have the central manubrial mouth closed, instead making use of secondary mouths at the side of the manubrium. These adaptations give the jellyfish a large surfac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scyphozoa
The Scyphozoa are an exclusively marine class of the phylum Cnidaria, referred to as the true jellyfish (or "true jellies"). The class name Scyphozoa comes from the Greek word ''skyphos'' (), denoting a kind of drinking cup and alluding to the cup shape of the organism. Scyphozoans have existed from the earliest Cambrian to the present. Biology Most species of Scyphozoa have two life-history phases, including the planktonic medusa or polyp form, which is most evident in the warm summer months, and an inconspicuous, but longer-lived, bottom-dwelling polyp, which seasonally gives rise to new medusae. Most of the large, often colorful, and conspicuous jellyfish found in coastal waters throughout the world are Scyphozoa. They typically range from in diameter, but the largest species, ''Cyanea capillata'' can reach across. Scyphomedusae are found throughout the world's oceans, from the surface to great depths; no Scyphozoa occur in freshwater (or on land). As medusae, they eat a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coronatae
Crown jellyfishes are the six families of true jellyfish that belong to the order Coronatae.Daly, Brugler, Cartwright, Collins, Dawson, Fautin, France, McFadden, Opresko, Rodriguez, Romano & Stake (2007). The phylum Cnidaria: A review of phylogenetic patterns and diversity 300 years after Linnaeus.' Zootaxa 1668: 127–182 They are distinguished from other jellyfish by the presence of a deep groove running around the umbrella, giving them the crown shape from which they take their name. Many of the species in the order inhabit deep sea environments. Crown jellyfish are able to make light through bioluminescence. When they are touched, their bells will light up. Otherwise, the bell of a crown jellyfish will look transparent when undisturbed. When they are attacked, crown jellyfish are able to startle, mislead, and distract their predators with the light that they produce. They may also use their bioluminescence to lure or dazzle their prey. Families , 53 recognized extant sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Periphyllidae
Periphyllidae is a family of jellyfish containing four genera and six species. The most well-known member of the family, ''Periphylla periphylla'', is usually considered a deep-sea The deep sea is broadly defined as the ocean depth where light begins to fade, at an approximate depth of 200 metres (656 feet) or the point of transition from continental shelves to continental slopes. Conditions within the deep sea are a combin ... species, but it forms large blooms in surface waters of Norwegian fjords. Genera *'' Nauphantopsis'' ** '' Nauphantopsis diomedeae'' Fewkes, 1885 *'' Pericolpa'' **'' Pericolpa campana'' (Haeckel, 1880) **'' Pericolpa quadrigata'' Haeckel, 1880 *'' Periphylla'' ** '' Periphylla periphylla'' (helmet jellyfish) (Péron & Lesueur, 1810) *'' Periphyllopsis'' **'' Periphyllopsis braueri'' Vanhöffen, 1902 **'' Periphyllopsis galatheae'' Kramp, 1959 References Taxa named by Ernst Haeckel Cnidarian families Coronatae {{Scyphozoa-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nausithoidae
Nausithoidae is a family of jellyfish. Genera *''Nausithoe'' ** '' Nausithoe albatrossi'' (Maas, 1897) ** '' Nausithoe atlantica'' (Broch, 1914) ** ''Nausithoe aurea'' Da Silveira & Morandini, 1997 ** '' Nausithoe challengeri'' (Haeckel, 1880) ** '' Nausithoe clausi'' (Vanhöffen, 1892) ** '' Nausithoe eumedusoides'' Werner, 1974 ** '' Nausithoe globifera'' (Bloch, 1914) ** '' Nausithoe hagenbeckii'' Jarms, 2001 ** '' Nausithoe limpida'' (Hartlaub, 1909) ** '' Nausithoe maculata'' Jarms, 1990 ** '' Nausithoe marginata'' ( Kölliker, 1853) ** '' Nausithoe picta'' (Agassiz & Mayer, 1902) ** '' Nausithoe planulophora'' Werner, 1971 ** '' Nausithoe planulophorus'' Werner, 1971 ** '' Nausithoe punctata'' (Kölliker, 1853) ** ''Nausithoe racemosa'' (Komai, 1936) ** ''Nausithoe rubra'' (Vanhöffen, 1902) ** ''Nausithoe simplex'' (Kirkpatrick, 1890) ** ''Nausithoe sorbei'' Jarms, Tiemann & Prados, 2003 ** ''Nausithoe striata'' (Vanhöffen, 1910) ** ''Nausithoe thieli'' Jarms, 1990 ** '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Linuchidae
Linuchidae is a family of crown jellyfish. Species *''Linuche ''Linuche'' is a genus of cnidarians belonging to the family Linuchidae. The species of this genus are found in America and Southeastern Asia. Species: *''Liniscus cyamopterus'' *''Liniscus ornithopterus'' *''Liniscus sandalopterus'' *''Linu ...'' **'' Linuche aquila'' ** Thimble jellyfish (''Linuche unguiculata'') External links Taxa named by Ernst Haeckel Cnidarian families Coronatae {{Scyphozoa-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atorellidae
''Atorella'' is a genus of crown jellyfish. It is the only genus in the monotypic family Atorellidae and includes five species. Members of this family are known from the eastern coast of Africa and the western coast of Panama. Characteristics Members of this genus are characterised by having exactly six tentacles and six rhopalia, twelve marginal lappets and twelve pedalia. The bell ranges from in diameter. The bell is colourless and transparent and the four orange gonads can be seen inside. The mouth has four lips. Species The World Register of Marine Species The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive list of names of marine organisms. Content The content of the registry is edited and maintained by scientific specialist ... lists the following species:- *'' Atorella arcturi'' Bigelow, 1928 *'' Atorella japonica'' Kawaguti & Matsuno, 1981 *'' Atorella octogonus'' Mills, Larson & Young, 1987 *' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atollidae
''Atolla'' is a genus of crown jellyfish in the order Coronatae. The genus ''Atolla'' was originally proposed by Haeckel in 1880 and elevated to the monotypic family level, as Atollidae by Henry Bigelow in 1913. The six known species inhabit the mesopelagic zone. The medusae possess multiple lobes called lappets at the bell margin. Medusae also have eight tentacles, alternating with eight rhopalia, and twice as many lappets occur as tentacles. Species *'' Atolla chuni'' Vanhöffen, 1902 *'' Atolla gigantea'' Maas, 1897 *'' Atolla parva'' Russell, 1958 *'' Atolla reynoldsi'' Matsumoto et al., 2022 *'' Atolla russeli'' Repelin, 1962 *'' Atolla tenella'' Hartlaub, 1909 *'' Atolla vanhoeffeni'' Russell, 1957 *'' Atolla wyvillei'' Haeckel, 1880 References External linksVideo of ''Atolla reynoldsi'' swimming by Monterey Bay Aquarium Research Institute The Monterey Bay Aquarium Research Institute (MBARI) is a private, non-profit oceanographic research center in Moss Landing, Cali ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Periphylla
The helmet jellyfish (''Periphylla periphylla'') is a luminescent, red-colored jellyfish of the deep sea, belonging to the order Coronatae of the phylum Cnidaria. It is the only species in the monotypic genus ''Periphylla'' and is one of the rare examples in Scyphozoa which life-cycle lacks a polyp stage. This species is photophobic and inhabits deeper parts of the oceans to avoid light. It may be found at the surface on dark nights. Description Helmet jellyfish reach a body size of up to . The average wet weight of the jellyfish is 540 grams. Overall, helmet jellyfish have a uniform size. They consist 90% of water, the rest being tissue and gelatinous mass, which give the animals their form. They light themselves from within by means of bioluminescence, the red flashes serving as a signal amongst themselves. Between their marginal lobes sit small sense bulbs, by which the helmet jelly can distinguish between light and dark; they have been observed to avoid light. Their natu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World Register Of Marine Species
The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive list of names of marine organisms. Content The content of the registry is edited and maintained by scientific specialists on each group of organism. These taxonomists control the quality of the information, which is gathered from the primary scientific literature as well as from some external regional and taxon-specific databases. WoRMS maintains valid names of all marine organisms, but also provides information on synonyms and invalid names. It is an ongoing task to maintain the registry, since new species are constantly being discovered and described by scientists; in addition, the nomenclature and taxonomy of existing species is often corrected or changed as new research is constantly being published. Subsets of WoRMS content are made available, and can have separate badging and their own home/launch pages, as "subregisters", such as the ''World List of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
