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Agaricia agaricites : ウィキペディア英語版 | Agaricia agaricites
''Agaricia agaricites'', commonly known as lettuce coral or tan lettuce-leaf coral, is a species of colonial stony corals in the family Agariciidae. This coral is found in shallow waters in the tropical western Atlantic Ocean and the Caribbean Sea. It is a common species and the IUCN has assessed its status as being of "least concern". ==Description== Colonies of ''A. agaricites'' have several different habits of growth, but usually occur in encrusting sheets with irregular projections or are leaf-like or plate-like. New colonies are usually encrusting, but vertical lobes and sheet-like projections begin to develop when the colonies are still quite small.〔(【引用サイトリンク】title=''Agaricia agaricites'' (Linnaeus 1758) )〕 The growth form seems to be partially linked to the movement of water in the vicinity and the depth. Horizontal plates normally have corallites on both sides while vertical forms have corallites on only one side. The corallites are arranged in long meandering rows, but a few are single, with sharp-pointed ridges between them. Each one has up to 36 septa and a central spongy columella. This coral is a brown or purplish-brown colour.
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