Atollidae

	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]
	Atolla Gigantea ''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, Calif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Atolla Chuni ''Atolla chuni'' is a species of crown jellyfish within the family Atollidae. The species is found distributed in the Southern Ocean and some parts of the southern Pacific and Atlantic Ocean in pelagic environments at depths of up to 5198 meters. Individuals have been found with partially digesting remains of large Calanoida copepods, chaetognaths, Hyperiidea amphipods, and krill Krill are small crustaceans of the order Euphausiacea, and are found in all the world's oceans. The name "krill" comes from the Norwegian Norwegian, Norwayan, or Norsk may refer to: Something of, from, or related to Norway, a country in n ... attached to the gastric cirri. It grows to a length of 7 centimeters. References {{Taxobar, from=Q2431397 Animals described in 1902 Atollidae Fauna of the Southern Ocean ... [...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]
	Atolla Vanhoeffeni ''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, Califor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Atolla Tenella ''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, Californ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Atolla Russeli ''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, Californi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Atolla Reynoldsi ''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, California ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Atolla Parva ''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, California. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Scyphozoan Genera 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]
	Atolla Wyvillei ''Atolla wyvillei'', also known as the Atolla jellyfish or Coronate medusa, is a species of deep-sea crown jellyfish (Scyphozoa: Coronatae). It lives in oceans around the world. Like many species of mid-water animals, it is deep red in color. This species was named in honor of Sir Charles Wyville Thomson, chief scientist on the Challenger expedition. It typically has 20 marginal tentacles and one hypertrophied tentacle which is larger than the rest. This long trailing tentacle is thought to facilitate prey capture. This species is bioluminescent. When attacked, it will launch a series of flashes, whose function is to draw predators who will be more interested in the attacker than itself. This has earned the animal the nickname "alarm jellyfish". Marine biologist Edith Widder created a device based on the Atolla jellyfish's distress flashes called the E-jelly, which has been used successfully and efficiently to lure in mysterious and rarely seen deep-sea animals for filming and d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Crown Jellyfish 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]
picture info	Rhopalium Rhopalia (singular: rhopalium) are small sensory structures of certain Scyphozoan (true jellyfish) and Cubozoan (box jellyfish) species. Description The structures typically occur in multiples of four, are bell shaped and face outward from invaginations around the bell of the jelly's mantle. They are each connected ectodermally to the periphery of other rhopalia by a stalk-like projections which join extremities in a skirt-like shape. These connections form the junctions of the cnidarian 'central nervous system', which synapse within the rhopalial centers. Rhopalia vary in form, size and number, but ubiquitously consist of specialized structures to sense light (ocelli), which line the structure, and regions to perceive gravity ( statoliths) at their terminal tip. Rhopalia are unique to the medusoid forms of Cnidarians and are best studied in Scyphozoa'','' within the genus '' Aurelia,'' which exhibits the most typical arrangement and structure of rhopalia in marginal indentations ... [...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]
	Atolla Gigantea ''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, Calif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Atolla Chuni ''Atolla chuni'' is a species of crown jellyfish within the family Atollidae. The species is found distributed in the Southern Ocean and some parts of the southern Pacific and Atlantic Ocean in pelagic environments at depths of up to 5198 meters. Individuals have been found with partially digesting remains of large Calanoida copepods, chaetognaths, Hyperiidea amphipods, and krill Krill are small crustaceans of the order Euphausiacea, and are found in all the world's oceans. The name "krill" comes from the Norwegian Norwegian, Norwayan, or Norsk may refer to: Something of, from, or related to Norway, a country in n ... attached to the gastric cirri. It grows to a length of 7 centimeters. References {{Taxobar, from=Q2431397 Animals described in 1902 Atollidae Fauna of the Southern Ocean ... [...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]
	Atolla Vanhoeffeni ''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, Califor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Atolla Tenella ''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, Californ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Atolla Russeli ''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, Californi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Atolla Reynoldsi ''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, California ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Atolla Parva ''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, California. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Scyphozoan Genera 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]
	Atolla Wyvillei ''Atolla wyvillei'', also known as the Atolla jellyfish or Coronate medusa, is a species of deep-sea crown jellyfish (Scyphozoa: Coronatae). It lives in oceans around the world. Like many species of mid-water animals, it is deep red in color. This species was named in honor of Sir Charles Wyville Thomson, chief scientist on the Challenger expedition. It typically has 20 marginal tentacles and one hypertrophied tentacle which is larger than the rest. This long trailing tentacle is thought to facilitate prey capture. This species is bioluminescent. When attacked, it will launch a series of flashes, whose function is to draw predators who will be more interested in the attacker than itself. This has earned the animal the nickname "alarm jellyfish". Marine biologist Edith Widder created a device based on the Atolla jellyfish's distress flashes called the E-jelly, which has been used successfully and efficiently to lure in mysterious and rarely seen deep-sea animals for filming and d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Crown Jellyfish 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]
picture info	Rhopalium Rhopalia (singular: rhopalium) are small sensory structures of certain Scyphozoan (true jellyfish) and Cubozoan (box jellyfish) species. Description The structures typically occur in multiples of four, are bell shaped and face outward from invaginations around the bell of the jelly's mantle. They are each connected ectodermally to the periphery of other rhopalia by a stalk-like projections which join extremities in a skirt-like shape. These connections form the junctions of the cnidarian 'central nervous system', which synapse within the rhopalial centers. Rhopalia vary in form, size and number, but ubiquitously consist of specialized structures to sense light (ocelli), which line the structure, and regions to perceive gravity ( statoliths) at their terminal tip. Rhopalia are unique to the medusoid forms of Cnidarians and are best studied in Scyphozoa'','' within the genus '' Aurelia,'' which exhibits the most typical arrangement and structure of rhopalia in marginal indentations ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]