Bait net - Bait net

Japanese: コマセアミ - こませあみ
Bait net - Bait net

A marine animal belonging to the order Mysidae and class Crustacea of ​​the phylum Arthropoda. It is distributed along the Pacific coast of Japan. It is about 7.5 mm long and has large, round eyes. It is distinguished from similar genera by the blunt, pointed front edge of the cephalothorax and the unique shape of the telson segment, the anterior half of which is an inverted triangle and the posterior half is disc-shaped. There are about six pairs of spines along the lateral edge of the anterior half of the telson segment, and about 30 spines along the periphery of the posterior half. The external appendages of the fourth abdominal appendage of the male are significantly longer, with the first segment being about three times the length of the second or third segment, and the end of the third segment having two short setae. It is important as fishing bait.

[Masamichi Takeda]

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

Japanese:

節足動物門甲殻綱アミ目アミ科に属する海産動物。日本の太平洋側に分布する。体長約7.5ミリメートルで、目が丸くて大きい。頭胸甲の前縁が鈍くとがっていることと、前半が逆三角形で後半が円盤状という尾節の特異な形態によって近似属から区別される。尾節の前半部の側縁には約6対、後半部の周縁には約30本の棘(とげ)が並んでいる。雄の第4腹肢の外肢は著しく長くなり、第1節は第2節または第3節の長さの約3倍あり、第3節末端に短い剛毛が2本ある。釣りの撒餌(まきえ)として重要である。

[武田正倫]

出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例

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