...They are similar to the polychaete Spionidae and live a free-floating life. About 30 species are known from Japan, including the horned burrowing beetle and the Iijimasu burrowing beetle. Their bodies are disc-shaped and bilaterally symmetrical, with a diameter of up to about 10 mm. *Some of the terminology that refers to "Iijimasu Ikuchimushi" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…多毛類のスピオ科のものによく似ていて浮遊生活をする。日本からはツノスイクチムシ,イイジマスイクチムシなど30種ほどが知られている。体は円盤状で左右相称,直径は10mmくらいまで。… ※「イイジマスイクチムシ」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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