翻訳と辞書 Words near each other ・ Catende ・ Catene ・ Catene (1974 film) ・ Catene (album) ・ Catene invisibili ・ Catenet ・ Catenian Association ・ Catenicellidae ・ Catenin ・ Catenin alpha-1 ・ Catenochytridium ・ Catenoid ・ Catenoleimus ・ Catenopylidae ・ Catenoy ・ Catenulida ・ Catenulisporineae ・ Catepanate of Italy ・ Catepanate of Ras ・ Catephia ・ Catephia abrostolica ・ Catephia albifasciata ・ Catephia albirena ・ Catephia albomacula ・ Catephia alchymista ・ Catephia barrettae ・ Catephia cana ・ Catephia compsotrephes ・ Catephia corticea ・ Catephia cryptodisca Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Catenulida ： ウィキペディア英語版 Catenulida The Catenulida are an order of turbellarian flatworms. They are relatively small free-living flatworms, inhabiting freshwater and marine environments. The pharynx and intestine are simple in structure, with the latter forming a ciliated sac. They possess two pairs of nerve cords and often a statocyst. The gonads are unpaired. Unusually, the male gonopore opens on the dorsal surface of the animal, above the pharynx, while the female reproductive system lacks any of the usual ducts and related structures found in other turbellarians. Asexual reproduction by paratomy is common, leading to chains of zooids (Latin fem. n. ''catenula'' - small chain). Members of the symbiotic genus ''Paracatenula'' lack a digestive tract, and instead use intracellular chemoautotrophic bacterial symbionts for their nutrition. == References == * * 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「Catenulida」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.