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Isophyllia sinuosa : ウィキペディア英語版 | Isophyllia sinuosa
''Isophyllia sinuosa'', the sinuous cactus coral, is a species of stony coral in the family Mussidae. It is found in shallow water in the tropical western Atlantic and the Caribbean Sea. ==Description and habitat== ''Isophyllia sinuosa'' is a massive coral that forms hemispherical or dome-shaped mounds up to across. On the coral surface there are shallow, meandering valleys about wide separated by convoluted ridges topped with a central, pale-coloured line. The polyps are large and are situated in the valleys, often in groups of three. Although they are usually retracted into their corallites by day, they are unable to retract completely, giving the coral a fleshy feel when touched. The septa that radiate from the corallites are spiny. At night, when the polyps are fully extended, the coral has a fuzzy appearance. The ridges and valleys are usually made up of contrasting colours. These combinations include green/yellow, green/blue, purplish-blue/white and two shades of brown.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Isophyllia sinuosa」の詳細全文を読む
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