"A corallite is the skeletal cup, formed by an individual stony coral polyp, in which the polyp sits and into which it can retract. The cup is composed of aragonite, a crystalline form of calcium carbonate, and is secreted by the polyp. Corallites vary in size, but in most colonial corals they are less than 3 mm (0.12 in) in diameter. The inner surface of the corallite is known as the calyx. The vertical blades inside the calyx are known as septa and in some species, these ridges continue outside the corallite wall as costae. Where there is no corallite wall, the blades are known as septocostae. The septa, costae and septocostae may have ornamentation in the form of teeth and may be thick, thin or variable in size. Sometimes there are paliform lobes, in the form of rods or blades, rising fr"@en . . . . "Ein Korallit oder Korallenkelch ist der Teil des Skeletts von Steinkorallen (Scleractinia) auf beziehungsweise in dem die Korallenpolypen sitzen. Er wird an der Basis des Polypen durch die Ausscheidung feinster Aragonitkristalle gebildet. Der Korallit gibt in seiner Struktur die Anatomie des Korallenpolypen wieder. Die genaue Feinstruktur der Koralliten ist ein wichtiges Merkmal bei der sehr schwierigen Artbestimmung der Steinkorallen."@de . "La corallite (aussi appel\u00E9e polypi\u00E9rite ou polypier) est une cavit\u00E9 de squelette calcaire s\u00E9cr\u00E9t\u00E9e par un polype de corail dur. Ce squelette est compos\u00E9 d'aragonite, forme cristalline du carbonate de calcium. Pour les individus en colonie, l'ensemble des polypi\u00E9rites est appel\u00E9 le polypier. \n* Haut : zoom sur un corallite (polypi\u00E9rite); Bas : polypier, squelette d'une colonie d'Astrangia \n* Polypes d'Acropora sortant de leurs corallites tubulaires \n* Corail vivant pr\u00E9sentant des corallites en sillons, contenant les polypes r\u00E9tract\u00E9s"@fr . . "Corallite"@en . "Coralito (coral)"@es . . . . "4295"^^ . "Coralito se denomina el exoesqueleto individual de cada p\u00F3lipo de coral duro, del orden Scleractinia. Tambi\u00E9n es aplicable al g\u00E9nero Millepora, denominado com\u00FAnmente \"coral de fuego\", y al g\u00E9nero Heliopora, denominado \"coral azul\". Todos ellos conforman los corales hermat\u00EDpicos, principales contribuyentes en la formaci\u00F3n de arrecifes. En el caso de especies coloniales, la estructura esquel\u00E9tica de la colonia, denominada corallum, es el resultado del conjunto de coralitos individuales, dispuestos en diversas estructuras, masivas, ramificadas, laminares, esf\u00E9ricas, monticulares, columnares, foli\u00E1ceas, incrustantes o en placas. El coralito est\u00E1 compuesto de aragonito, que es una forma cristalina de carbonato de calcio, producido y secretado por el p\u00F3lipo coralino."@es . . "Coralito se denomina el exoesqueleto individual de cada p\u00F3lipo de coral duro, del orden Scleractinia. Tambi\u00E9n es aplicable al g\u00E9nero Millepora, denominado com\u00FAnmente \"coral de fuego\", y al g\u00E9nero Heliopora, denominado \"coral azul\". Todos ellos conforman los corales hermat\u00EDpicos, principales contribuyentes en la formaci\u00F3n de arrecifes. El coralito est\u00E1 compuesto de aragonito, que es una forma cristalina de carbonato de calcio, producido y secretado por el p\u00F3lipo coralino."@es . . . . "6039659"^^ . . . . "Ein Korallit oder Korallenkelch ist der Teil des Skeletts von Steinkorallen (Scleractinia) auf beziehungsweise in dem die Korallenpolypen sitzen. Er wird an der Basis des Polypen durch die Ausscheidung feinster Aragonitkristalle gebildet. Der Korallit gibt in seiner Struktur die Anatomie des Korallenpolypen wieder. Der Kelch besteht aus einer Basalplatte, die von einer Theca genannten ringf\u00F6rmigen Au\u00DFenwand umgeben ist. Von der Theca aus erstrecken sich sechs, zw\u00F6lf oder, bei vielen gro\u00DFpolypigen Steinkorallen auch ein Vielfaches von sechs, scharfkantige Kalksepten radi\u00E4r zur Mitte des Koralliten. Setzen sich die Septen \u00FCber die Korallitenwand hinaus nach au\u00DFen fort, werden die au\u00DFen sitzenden Teile als Costae bezeichnet. Die Anzahl der Kalksepten entsprechen der Anzahl der Mesenterien im Gastralraum der Polypen. Im Zentrum des Koralliten sitzt bei manchen Gattungen eine kleine, Collumella genannte, Kalks\u00E4ule, an die alle Septen sto\u00DFen. Bei solit\u00E4ren Steinkorallen fehlt oft die Au\u00DFenwand. Der Korallit w\u00E4chst durch die Kalkproduktion am Fu\u00DF des Polypen weiter und wird immer tiefer. Sind Septen und Au\u00DFenring zu hoch geworden, so wird eine neue Basalplatte, etwas h\u00F6her als die alte, gebildet. Die alte Basalplatte ist jetzt zu einem Querboden im Korallenskelett geworden, der Dissepiment genannt wird. Lebendes Korallengewebe, das sich unterhalb der neuen Basalplatte befindet, stirbt ab. Bei den Hirnkorallen genannten, massiven Korallenformen entsteht die gewundene, stark gefaltete Form dadurch, dass sich mehrere Polypen einen langgestreckten Koralliten teilen, und sich zwischen den gemeinsamen Au\u00DFenw\u00E4nden tiefe T\u00E4ler befinden. Diese Form wird auch Flabello-meandroid genannt. Die genaue Feinstruktur der Koralliten ist ein wichtiges Merkmal bei der sehr schwierigen Artbestimmung der Steinkorallen."@de . . . "Korallit"@de . "Polypi\u00E9rite"@fr . . "Un corallite \u00E8 l'esoscheletro individuale, generalmente a forma di calice o coppa, dei polipi corallini dell'ordine Scleractinia, che funge da sostegno e all'interno del quale il polipo si pu\u00F2 ritrarre. Il corallite \u00E8 composto di aragonite, che \u00E8 una forma cristallina di carbonato di calcio, secreto dal polipo stesso. Il termine \u00E8 talora applicato anche agli octocoralli del genere Heliopora, e agli idrozoi del genere Millepora, impropriamente denominati \"coralli di fuoco\". La struttura \u00E8 tipica dei coralli ermatipici, principali contributori alla formazione delle barriere coralline. Nelle specie coloniali, i coralliti si fondono a formare strutture di forma diversa: massicce, ramificate, laminari, sferiche, monticolari, colonnari, foliacee, incrostanti o a placche. Quando i coralliti non sono a stretto contatto fra loro, la colonia \u00E8 detta plocoide, mentre quando i coralliti sono posti a diretto contatto la colonia \u00E8 detta cerioide. In una colonia plocoide i corralliti sono tipicamente cilindrici con pareti distinte separate fra loro dal cenosteo. Quando la sua conformazione \u00E8 allungata, a forma di tubo, la colonia \u00E8 detta faceloide. Talora i coralliti sono disposti, in serie pi\u00F9 o meno allungate, in avvallamenti della superficie della colonia: in tali casi la colonia \u00E8 detta meandroide, mentre se i coralliti sono disposti a formare delle protuberanze (monticule) la colonia \u00E8 detta idnoforoide. Nei coralli ramificati, come per esempio quelli del genere Acropora, sono presenti due forme di coralliti, assiali e radiali. I coralliti assiali sono pi\u00F9 superficiali e si trovano in prossimit\u00E0 degli apici delle ramificazioni, mentre i coralliti radiali occupano le parti laterali delle ramificazioni."@it . "A corallite is the skeletal cup, formed by an individual stony coral polyp, in which the polyp sits and into which it can retract. The cup is composed of aragonite, a crystalline form of calcium carbonate, and is secreted by the polyp. Corallites vary in size, but in most colonial corals they are less than 3 mm (0.12 in) in diameter. The inner surface of the corallite is known as the calyx. The vertical blades inside the calyx are known as septa and in some species, these ridges continue outside the corallite wall as costae. Where there is no corallite wall, the blades are known as septocostae. The septa, costae and septocostae may have ornamentation in the form of teeth and may be thick, thin or variable in size. Sometimes there are paliform lobes, in the form of rods or blades, rising from the inner margins of the septa. These may form a neat circle called the paliform crown. The septa do not usually unite in the centre of the corallite, instead they form a columella, a tangled mass of intertwined septa, or a dome-shaped or pillar-like projection. In the living coral, the lower part of the polyp is in intimate contact with the corallite, and has radial mesenteries between the septa which increase the surface area of the body cavity and aid digestion. The septa, palliform lobes and costae can often be seen through the coenosarc, the layer of living tissue that covers the coenosteum, the part of the skeleton between the corallites. In colonial species, when the corallites each have a surrounding wall, the colony is said to be plocoid. When the walls are tall and tubular, the colony is phaceloid, and when several polyps share a common wall, the colony is cerioid. Sometimes the polyps are in valleys on the surface of solid corals, they are then known as meandroid. Branching corals have two forms of corallites, axial and radial. The axial corallites tend to be shallow and are found near the tips of the branches, while the radial corallites are on the sides of the branches. Corallites can be rounded or polygonal and may be inclined (tilted obliquely to one side). As long as the colony is alive, the polyps and coenosarc deposit further calcium carbonate under the coenosarc, thus deepening the corallites. Each polyp has a fixed adult size and, when it is beginning to get submerged in the corallite, it secretes a new floor (tabula) beneath itself. Over time, a series of floors builds up below the living polyps, resulting in a thickening and lateral expansion of the coral."@en . "La corallite (aussi appel\u00E9e polypi\u00E9rite ou polypier) est une cavit\u00E9 de squelette calcaire s\u00E9cr\u00E9t\u00E9e par un polype de corail dur. Ce squelette est compos\u00E9 d'aragonite, forme cristalline du carbonate de calcium. Pour les individus en colonie, l'ensemble des polypi\u00E9rites est appel\u00E9 le polypier. La taille de la cavit\u00E9 varie selon les esp\u00E8ces mais pour la majorit\u00E9 des coraux coloniaux, elle ne d\u00E9passe pas 3 mm de diam\u00E8tre. La surface int\u00E9rieure du corallite est connue sous le nom de calice. Les lames verticales, ou septa, forment des cr\u00EAtes qui peuvent se prolonger chez certaines esp\u00E8ces, hors de la cavit\u00E9. Les septa, et les cr\u00EAtes peuvent \u00EAtre de taille et de forme variables. Selon l'esp\u00E8ce, les polypes peuvent par exemple se partager les parois du corallite qui forment alors un sillon. Dans le corail vivant, la partie inf\u00E9rieure du polype, contenant sa cavit\u00E9 gastrique, ne se d\u00E9tache jamais du corallite. Celui-ci pr\u00E9sente des m\u00E9sent\u00E8res radiaux entre les septa qui augmentent la surface de sa cavit\u00E9 corporelle et lui facilitent la digestion. Le corallite est la loge du polype qui peut s'y r\u00E9tracter ou s'allonger pour sortir ses tentacules et attraper des proies. Tant que la colonie est vivante, le polype absorbe les ions Ca2+ et HCO3\u2013 de l\u2019eau de mer et d\u00E9pose du carbonate de calcium sous son coenosarc, approfondissant ainsi la loge : chaque polype a une taille adulte fixe et, lorsqu'il commence \u00E0 \u00EAtre submerg\u00E9 par la paroi de sa loge, il s\u00E9cr\u00E8te un nouveau plancher (tabula) sous lui-m\u00EAme. Au fil du temps, les planchers s'accumulent sous les polypes vivants, entra\u00EEnant un \u00E9paississement et une expansion lat\u00E9rale du corail et de son squelette. \n* Haut : zoom sur un corallite (polypi\u00E9rite); Bas : polypier, squelette d'une colonie d'Astrangia \n* Polypes d'Acropora sortant de leurs corallites tubulaires \n* Corail vivant pr\u00E9sentant des corallites en sillons, contenant les polypes r\u00E9tract\u00E9s"@fr . . . "Corallite"@it . . "1120440727"^^ . . . . . . . . . . . . . "Un corallite \u00E8 l'esoscheletro individuale, generalmente a forma di calice o coppa, dei polipi corallini dell'ordine Scleractinia, che funge da sostegno e all'interno del quale il polipo si pu\u00F2 ritrarre. Il corallite \u00E8 composto di aragonite, che \u00E8 una forma cristallina di carbonato di calcio, secreto dal polipo stesso. Il termine \u00E8 talora applicato anche agli octocoralli del genere Heliopora, e agli idrozoi del genere Millepora, impropriamente denominati \"coralli di fuoco\"."@it . .