A crustacean of the Cirripedidae family (illustration) that is known to be the most damaging of all the barnacles that attach to the bottom of ships and cause fouling. This species is found in seas with high salinity and is widely distributed around the world. The shell diameter is about 10 to 15 mm. The upper edge of the shell is sharp and tooth-like, and the tips of the shell plates may be curved outward. The surface of the shell is smooth and has wide, dark purple vertical stripes that cross reddish-brown horizontal stripes. In addition to attaching to the bottom of ships, it also attaches to stones and shells below the low tide line. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
船底に付着して,汚損させるフジツボ類の中でもっともその害の著しい種類として知られている,蔓脚(まんきやく)亜綱フジツボ科の甲殻類(イラスト)。本種は塩分濃度の高い海に多く,世界各地に広く分布している。殻の直径10~15mmくらい。殻の上縁は歯状を呈し,とがり,それらの殻板の頂は外側にそり返っていることがある。殻の表面は滑らかで,暗紫色の幅広い縦縞があり,これらに赤褐色の横縞が交差している。船底以外に,低潮線以深にある石や貝殻の上などにも付着している。
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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