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Porites compressa : ウィキペディア英語版 | Porites compressa
''Porites compressa'', finger coral or hump coral, is a species of marine stony coral in the family Poritidae. It is found growing on coral reefs and in shallow lagoons in tropical parts of the Indian and Pacific Oceans. ==Description== ''Porites compressa'' is generally pale brown or grey. In shallow water it resembles a knobbly boulder but in deeper water it is more columnar. The branches are cylindrical and often fuse together.〔(''Porites compressa'' Dana 1846 ) WetWebMedia.com. Retrieved 2011-12-23.〕〔(''Porites compressa'' Dana 1846 ) Corals of the World. Retrieved 2011-12-23.〕 The growth rate is slow but it often grows into large colonies which may be up to 1000 years old.〔(Stony coral (''Porites compressa'') ) ARKive. Retrieved 2011-12-23.〕 It is a zooxanthellate coral, having symbiotic unicellular zooxanthellae in the tissues which provide it with energy.〔
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