Mirapinna esau (special fin sardine)

Japanese: トクビレイワシ(特鰭鰯) - トクビレイワシ（英語表記）Mirapinna esau

A marine fish of the family Acanthariidae in the order Acanthariformes. Its pelvic fins are located below and in front of the pectoral fins, and are characterized by their large, fan-like spread. It has been found in the subarctic regions of the Atlantic Ocean. The body is laterally compressed, with the dorsal and anal fins facing each other and positioned behind the center of the body. The caudal fin is large and fan-shaped. The fins have no spines and are entirely made of soft rays. It reaches a body length of 4 cm. The body is black-brown. It is covered with small ciliated projections that reach a maximum length of 1 to 1.5 mm, and has no scales. Many secretory glands are found in the ciliated projections, and it has been suggested that the smell, taste, or toxicity of secretions may allow the fish to escape from predators.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

トクビレイワシ目トクビレイワシ科の海産魚。腹びれが胸びれの前下方にあり，うちわのように大きく広がっているのが特徴。大西洋の亜寒帯域から見つかっている。体は側扁し，背びれとしりびれは体の中心より後方で相対する。尾びれは大きくうちわ状。ひれにはとげがなく，すべて軟条からなる。体長4cmになる。体は黒褐色。体長は，最大長1～1.5mmに達するじゅう毛様の小突起で覆われ，うろこがない。毛様突起に分泌腺が多く見られ，分泌物のにおい，味または毒性などにより敵から逃れる可能性も指摘されている。

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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