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Blue coral
Blue coral (''Heliopora coerulea'') is a species of colonial coral and the only species in the family Helioporidae and the only Octocoral known to produce a massive skeleton. This skeleton is formed of aragonite, similar to that of scleractinia. Individual polyps live in tubes within the skeleton and are connected by a thin layer of tissue over the outside of the skeleton. It was described by Pallas in 1766. ==Description== The blue coral is the only Octocoral with a massive skeleton,〔 which is composed of aragonite (calcium carbonate). It is a hermatypic zooxanthellaete species with either blue or grey-grey polyps located within its skeleton, which each contain eight tentacles. Its colonies are either columnar, plates or branched.〔(【引用サイトリンク】title=''Heliopora coerulea'' )〕 It is a tolerant species and is used in aquariums.
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「Blue coral」の詳細全文を読む
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