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Heliofungia actiniformis : ウィキペディア英語版 | Heliofungia actiniformis
''Heliofungia actiniformis'' is a solitary species of mushroom coral, a large polyp stony coral in the family Fungiidae. This coral is found in shallow water in the Indo-Pacific region. It is a zooxanthellate species. It is a popular coral in the reef aquarium trade; wild populations are threatened by disease, climate change, and over-collecting, and the species is considered vulnerable by the IUCN. ==Description== Although fixed to the substrate as a juvenile, this coral becomes detached later and is free-living as an adult.〔 It is circular or oval with a diameter of up to and height of . The corallum (stony skeleton) is thick and solid. The septa (stony ridges) are in several orders. The early order septa are larger than later order ones and have more prominent, lobe-like or triangular teeth. All the septa are granulate, and continue to the underside of the corallum as fine ridges known as costae. There is an attachment scar in the centre of the underside. The polyp is thick and fleshy and has a single mouth surrounded by thick tentacles with knobs on the end. The tentacles are nearly always extended and superficially resembles a large sea anemone.
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「Heliofungia actiniformis」の詳細全文を読む
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