...It is a favorite food of bottom fish, and the northern worm Echiurus echiurus , about 8 cm long and 2 cm wide, has been found almost intact in the stomachs of plaice and horned flounders off the coast of Kamchatka Peninsula, along with polychaetes and other creatures. The worm Urechis unicinctus is cylindrical, 10 to 30 cm long, and reddish-white in color. It has a short snout and a pair of abdominal setae behind the mouth. *Some of the terminology that mentions "Urechis unicinctus" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…底魚類の好む餌になっていて,カムチャツカ半島沖のコガネガレイやツノガレイの胃の中から体長8cm,体幅2cmほどのキタユムシEchiurus echiurusがほとんどそのままの形で多毛類などとともにでてきている。 ユムシUrechis unicinctusは体長10~30cmの円筒状で赤みがかった乳白色をしている。吻は短く,口の後方に1対の腹剛毛がある。… ※「Urechis unicinctus」について言及している用語解説の一部を掲載しています。 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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