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Holothuria edulis : ウィキペディア英語版 | Holothuria edulis
''Holothuria edulis'', commonly known as the edible sea cucumber or the pink and black sea cucumber, is a species of echinoderm in the family Holothuriidae. It was placed in the subgenus ''Halodeima'' by Pearson in 1914, making its full scientific name ''Holothuria (Halodeima) edulis''.〔 It is found in shallow water in the temperate and tropical western part of the Indo-Pacific Ocean. ==Description== ''Holothuria edulis'' is a medium-sized sea cucumber reaching a length of about . It has a roughly cylindrical shape with rounded ends but can retract and expand its body and adopt different shapes. It is usually soft and pliable with a smooth skin but, due to the special characteristics of its connective tissue, it can become firm and rigid. The body is lined with longitudinal rows of small tube feet which can be withdrawn into the body wall, leaving small hollows. About twenty tube feet in a ring round the mouth are modified into feeding tentacles. This sea cucumber is usually a dark reddish-black colour on its upper side and a pinkish-mauve colour below, but can be grey or dark brown.
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