…General term for animals belonging to the Trematoda class of the phylum Platyhelminthes. The body is usually flattened and leaf-, tongue-, or spatula-shaped, but sometimes cylindrical, reminiscent of a nematode, or thick, with a coffee bean-like shape when fixed. From [Flatworms]...Also, there are billworms that are up to 30 cm long and live in humid places such as forests and gardens. (2) Trematoda There are external and internal parasites. The body is flattened and leaf-like, with one or several suckers on the ventral surface at or near the front end, or on the rear, which attach to the host. ... *Some of the terminology that mentions "Trematoda" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…扁形動物門吸虫綱Trematodaに属する動物の総称。体は通常扁平で,葉状,舌状,または篦(へら)状であるが,ときにセンチュウ(線虫)を思わせるような円筒形のものや,体部が厚く,固定するとコーヒー豆状を呈するものもある。… 【扁形動物】より…また,コウガイビルの仲間は体長30cmほどのものがあり,森や庭などの湿気の多い場所にすむ。(2)吸虫綱Trematoda 外部寄生と内部寄生がある。体は扁平な葉状で,前端かその近くの腹面,または後方に1~数個の吸盤をもっていて宿主に吸着する。… ※「Trematoda」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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