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''Halecium'' is a genus of hydrozoa in the Haleciidae family, consisting of approximately 120 species. These marine invertebrates are found in all oceans, where they often form large colonies. ==References== 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「Halecium」の詳細全文を読む スポンサード リンク
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