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Holothuria scabra
''Holothuria scabra'', or the sandfish, is a species of sea cucumber in the family Holothuriidae. It was placed in the subgenus ''Metriatyla'' by Rowe in 1969 and is the type species of the subgenus.〔Rowe, F.W.E. (1969). A review of the family Holothuriidae (Holothurioidea: Aspidochirotida). Bull. Br. Mus. (Nat. Hist.) (Zool.) 18(4): 119-170〕 Sandfish are harvested and processed into "beche-de-mer" and eaten in China and other Pacific coastal communities.
Sea cucumbers are marine invertebrates and are closely related to sea urchins and starfish. All these groups tend to have radial symmetry and have a water vascular system that operates by hydrostatic pressure, enabling them to move around by use of many suckers known as tube feet. Sea cucumbers are usually leathery, gherkin-shaped animals with a cluster of feeding tentacles at one end surrounding the mouth.
==Description==
The sandfish is greyish-black on the upper side with dark-coloured wrinkles but paler on the underside. It grows up to four centimetres long, is broader than it is high and has a pliable skin. It is covered by calcareous spicules in the form of tablets and buttons.〔(Marine Species Identification Portal )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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