A general term for fish of the Echeneidae family of Perciformes, or one of these species. Seven species of remora are known from Japan, and all of them have a distinctive feature in that they have a modified oval-shaped sucker on the back of their head, which is the first dorsal fin, hence the name. They are also called remora. They live by using this sucker to attach themselves to the body surface, mouth, or gill openings of large animals such as large fish, sharks, sea turtles, and whales. Larger species are sometimes caught while swimming freely, but smaller species have a close relationship with their hosts. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
スズキ目コバンザメ科Echeneidae魚類の総称,またはそのうちの1種を指す。コバンザメ類は日本から7種が知られ,そのいずれも頭部背面に第1背びれの変形した小判状の吸盤をもつことが著しい特徴で,名もこれによる。コバンイタダキともいう。この吸盤を用いて大型魚類,サメ類,海ガメ類,クジラ類などの大型動物の体表,口腔,鰓孔(えらあな)などに吸着して生活を送る習性がある。大型種では自由遊泳中のものが捕獲されることもあるが,小型種では宿主との関係が密接である。
出典 株式会社平凡社世界大百科事典 第2版について 情報 |
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