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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 Echinidae ： ウィキペディア英語版 Echinidae Echinidae is a family of sea urchins in the order Echinoida. Members of the family are found in the Atlantic Ocean and the Antarctic.〔(Family Echinidae Gray, 1825. ) The Echinoid Directory. Retrieved 2011-08-28.〕 ==Characteristics== Members of the Echinidae family are characterized by having trigeminate ambulacra (quadrigeminate in one genus) with pairs of tube feet pores arranged either as vertical arcs or as a dense band. The ambulacral plates are compound. The tubercles are imperforate and do not have crenulate edges. There are few tubercles on the interambulacral plates. The buccal notches are reduced in size and, their most significant distinguishing feature, the pedicellariae are globiferous and have one or two pairs of lateral teeth on the narrow tubular blades.〔〔(True Sea-urchins (Family Echinidae) ) Marine Species Identification Portal. Retrieved 2011-08-28.〕 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「Echinidae」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.