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''Elpidia'' is a genus of deep-sea swimming sea cucumbers. Members are characterised by their rod-shaped spicules which each have two pairs of obliquely-placed horizontal arms and two vertical apophyses.〔 There is a high degree of endemism in this genus with different species occupying different deep sea basins or regions. ==Species== The World Register of Marine Species recognises the following species:〔 *''Elpidia adenensis'' Belyaev, 1971 *''Elpidia antarctica'' Belyaev, 1971 *''Elpidia atakama'' Belyaev, 1971 *''Elpidia belyaevi'' Rogacheva, 2007 *''Elpidia birsteini'' Belyaev, 1971 *''Elpidia chilensis'' Belyaev, 1971 *''Elpidia decapoda'' Belyaev, 1975 *''Elpidia echinata'' (R. Perrier, 1896) *''Elpidia glacialis'' Théel, 1876 *''Elpidia gracilis'' Belyaev, 1975 *''Elpidia heckeri'' Baranova, 1989 *''Elpidia javanica'' Belyaev, 1971 *''Elpidia kermadecensis'' Hansen, 1956 *''Elpidia kurilensis'' Baranova & Belyaev in Belyaev, 1971 *''Elpidia lata'' Belyaev, 1975 *''Elpidia longicirrata'' Belyaev, 1971 *''Elpidia minutissima'' Belyaev, 1971 *''Elpidia ninae'' Belyaev, 1975 *''Elpidia solomonensis'' Hansen, 1956 *''Elpidia sundensis'' Hansen, 1956 *''Elpidia theeli'' Hansen, 1956 *''Elpidia uschakovi'' Belyaev, 1971 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「Elpidia」の詳細全文を読む スポンサード リンク
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