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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Astropecten aranciacus ： ウィキペディア英語版 Astropecten aranciacus ''Astropecten aranciacus'' is a sea star of the family Astropectinidae.〔 It is native to the east Atlantic Ocean and Mediterranean Sea.〔 ==Habitat and behaviour== ''Astropecten aranciacus'' lives very near the coast, and at low tide it buries itself in the sand, showing only the centre of its upper side which is swollen in the form of a cone. This cone acts like a sense organ. When it is touched, the cone contracts and the starfish buries itself on the sand again. Then at high tide, the starfish reappears on the surface of the water. It buries itself in the sand to shield parts of its body from the rays of the sun, especially the bottom surface which has no coloured pigment and is therefore particularly sensitive. ''Astropecten aranciacus'' lives on sandy, muddy or gravel bottoms at depths of . This species is active and easy to find in the late afternoon and during the night. 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「Astropecten aranciacus」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.