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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 Sycon raphanus ： ウィキペディア英語版 Sycon raphanus ''Sycon raphanus'' is a species of marine invertebrate, a calcareous sponge belonging to the family Sycettidae. The name derives from the Greek, "raphanus", meaning radish, and presumably refers to the sponge's shape. Sponges are composed of a jellylike mesohyl sandwiched between two layers of cells. They have a fragile skeleton composed of stiff spicules. They are filter feeders, maintaining a flow of water through their structure which passes out through large openings called oscula. ==Description== This small purse sponge grows singly and is globular in shape, sometimes with a short stalk. It is up to eight centimetres long and may be grey, yellowish or white. At the tip is an osculum fringed with long, upright spicules. The surface of the sponge is hairy and the consistency soft. The skeleton consists of both triactines and tetractines. This species closely resembles ''Sycon ciliatum'' but can be distinguished by the fact that the choanocyte chambers are fused.〔(Marine Species Identification Portal )〕 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「Sycon raphanus」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.