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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 Hypsidoris ： ウィキペディア英語版 Hypsidoris ''Hypsidoris'' is an extinct genus of catfish, classified within its own family Hypsidoridae, from the Eocene epoch of North America. ''Hypsidoris'' was about long, and looked similar to the modern catfish, also possessing sensitive barbels used to detect prey in murky waters. It also had a vibration-sensitive organ called the Weberian apparatus, which consisted of specialized vertebrae at the front of the spinal column which passed vibrations to the inner ear, using the swim bladder as a resonance chamber. For defense against predators, ''Hypsidoris'' had large spines at the front of each pectoral fin. Like modern catfish, it would probably have eaten smaller fish, along with crayfish and other bottom-dwelling creatures. There are two species. ''H. farsonensis'' is from the Early Middle Eocene of Wyoming and ''H. oregonensis'' is from the Middle Eocene of Oregon. ==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「Hypsidoris」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.