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Astropecten duplicatus : ウィキペディア英語版 | Astropecten duplicatus
''Astropecten duplicatus'', the two-spined sea star, is a starfish in the family Astropectinidae. It is found in the eastern Atlantic Ocean, the Caribbean Sea and the Gulf of Mexico. ==Description== ''Astropecten duplicatus'' normally has five long slender, tapering arms which are flattened dorso-ventrally. The aboral (upper) surface has a single row of large marginal plates around the edges of the arms. These are granular, and the two that are closest to the disc each bear a conical spine, although this is often worn away. Other marginal plates and the plates on the oral (lower) surface bear many fine blunt spinules. The tube feet are pointed and have no suckers. ''Astropecten duplicatus'' grows to about in diameter. The aboral surface is pale grey or reddish-brown and the oral surface is pale brown or orange.
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 duplicatus」の詳細全文を読む
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