Aequoreidae

	Aequoreidae Aequoreidae is a family of hydrozoans, sometimes called the many-ribbed jellies or many-ribbed jellyfish. There are approximately 30 known species found in temperate and tropical marine coastal environments. Aequoreids include ''Aequorea victoria'', the organism from which the green fluorescent protein gene was isolated. Polyps Only the polyp stages of '' Aequorea'' species have been observed. The colonies are covered with chitinous periderm and can be either prostrate or erect with weak or sympodial branching. Young possess with a closing structure called '' operculum'', which consists of several relatively long triangular folds that meet together in the centre when a disturbed polyp contracts. Because the operculum is quite fragile, hydrothecae of old polyps usually have only a small chitinous collar remaining. Comparatively large cylindrical are attached to the colony with a thin peduncle. Commonly only one medusa develops in each gonotheca. Medusae Mature aequoreid medus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Aequoreidae Aequoreidae is a family of hydrozoans, sometimes called the many-ribbed jellies or many-ribbed jellyfish. There are approximately 30 known species found in temperate and tropical marine coastal environments. Aequoreids include ''Aequorea victoria'', the organism from which the green fluorescent protein gene was isolated. Polyps Only the polyp stages of '' Aequorea'' species have been observed. The colonies are covered with chitinous periderm and can be either prostrate or erect with weak or sympodial branching. Young possess with a closing structure called '' operculum'', which consists of several relatively long triangular folds that meet together in the centre when a disturbed polyp contracts. Because the operculum is quite fragile, hydrothecae of old polyps usually have only a small chitinous collar remaining. Comparatively large cylindrical are attached to the colony with a thin peduncle. Commonly only one medusa develops in each gonotheca. Medusae Mature aequoreid medus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Aequorea ''Aequorea'' is a genus of pelagic hydrozoans in the family Aequoreidae. Species The genus contains the following species: '' Aequorea africana'' Millard, 1966 '' Aequorea albida'' L. Agassiz, 1862 '' Aequorea atrikeelis'' Lin, Xu, Huang & Wang, 2009 '' Aequorea australis'' Uchida, 1947 '' Aequorea coerulescens'' (Brandt, 1838) '' Aequorea conica'' Browne, 1905 '' Aequorea cyanea'' de Blainville, 1834 '' Aequorea floridana'' Agassiz, 1862 '' Aequorea forskalea'' Péron & Lesueur, 1810 ''Aequorea globosa'' Eschscholtz, 1829 '' Aequorea krampi'' Bouillon, 1984 '' Aequorea kurangai'' Gershwin, Zeidler & Davie, 2010 '' Aequorea macrodactyla'' Brandt, 1835 '' Aequorea minima'' Bouillon, 1985 '' Aequorea nanhainensis'' Xu, Huang & Du, 2009 '' Aequorea papillata'' Huang & Xu, 1994 '' Aequorea parva'' Browne, 1905 '' Aequorea pensilis'' Haeckel, 1879 '' Aequorea phillipensis'' Watson, 1998 '' Aequorea taiwanensis'' Zheng, Lin, Li, Cao, Xu & Huang, 2009 '' Aequorea te ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
picture info	Leptothecata Leptothecata, or thecate hydroids, are an order of hydrozoans in the phylum Cnidaria. Their closest living relatives are the athecate hydroids, which are similar enough to have always been considered closely related, and the very apomorphic Siphonophorae, which were placed outside the "Hydroida". Given that there are no firm rules for synonymy for high-ranked taxa, alternative names like Leptomedusa, Thecaphora or Thecata, with or without the ending emended to "-ae", are also often used for Leptothecata. Leptothecata is surrounded by a chitinous outer layer as its exoskeleton, including gonophores, their reproductive organ. Leptothecata obtain radial symmetry, in which their gonads can be found in their radial canals. Their morphological characters normally have ranged from benthic to planktonic stages. Characters associated with benthic are the polyps and colony forms, while planktonic is medusae. Leptothecata has a vast and complex variation among all species within the hydrozo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Rhacostoma Atlanticum ''Rhacostoma'' is a genus of aequoreid hydrozoans. It is monotypic with a single species, ''Rhacostoma atlanticum''. It has been reported from the Atlantic coastline of North America, Colombia, western and central Africa. The polyp stage is unknown. Morphology The medusae reach up to in diameter with the bell height 3–4 times less than the width. Specimens found in the northern waters tend to be transparent, while those found farther south are tinted pink. The broad stomach gives rise to 80–100 non-branching radial canals. Tentacle In zoology, a tentacle is a flexible, mobile, and elongated organ present in some species of animals, most of them invertebrates. In animal anatomy, tentacles usually occur in one or more pairs. Anatomically, the tentacles of animals work main ...s are slightly more numerous than radial canals and do possess elongated conical bulbs. References Aequoreidae Hydrozoan genera Taxa named by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]