Furisodeuo (Furisode fish) - Furisodeuo (English name) ribbon fish

Japanese: フリソデウオ(振袖魚) - フリソデウオ（英語表記）ribbon fish

A marine fish of the family Ocellariidae in the order Opoleiformes (illustration). Fish of this family live in the deep ocean and have a fragile, band-like structure and a mouth that can protrude forward. The English name comes from its shape. The dorsal fin first forms a crest, then continues long and reaches the tail fin, of which only the upper lobe develops and curves backward. The pelvic fin is also large and extends backward. However, as it grows, the crest and pelvic fins shrink, and the tail fin often breaks. It has no anal fin. The body of the Opoleiformes is silvery-white with numerous scattered dark circular spots, and a black line runs along the base of the dorsal fin.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

アカマンボウ目フリソデウオ科の海産魚（イラスト）。本科の魚は外洋の深所にすみ，帯状の脆弱（ぜいじやく）なつくりと前方に突き出せる口とをもつ。英名はその形態に由来する。背びれはまず〈とさか〉をつくってから長く続いて尾びれに及び，尾びれは上葉のみ発達して背方に反る。腹びれも大きくて後方に伸長する。ただし，成長につれて〈とさか〉と腹びれが縮小し，尾びれもしばしば折損するらしい。しりびれはない。フリソデウオの体は銀白色で多数の暗色円斑が散在し，背びれ基底に沿って1黒線が走る。

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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