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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 Tripneustes ventricosus ： ウィキペディア英語版 Tripneustes ventricosus ''Tripneustes ventricosus'', commonly called the West Indian sea egg, is a species of sea urchin. It is common in the Caribbean Sea, the Bahamas and Florida and may be found at depths of less than . ==Description== The test of the West Indian sea egg is dark in colour, usually black, dark purple or reddish brown, with white spines 1 to 2 centimetres (0.4 to 0.8 inches) long. The test can reach in diameter. It is often covered with pieces of seagrass, fragments of shell and other debris in a manner similar to the closely related ''Tripneustes gratilla''.〔Humann, Paul, ''Reef Creature Identification'', Edited by Ned Deloach. New World Publications, Inc., 1992, p. 292-293.〕 These decorations are held in place by tube feet among the spines and are believed to provide protection from the intense sunlight that penetrates the shallow water. 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「Tripneustes ventricosus」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.