Euglena (green worm) - Euglena

Japanese: ミドリムシ(緑虫) - ミドリムシ
Euglena (green worm) - Euglena
Euglena is a green, single-celled algae that grows in ponds, swamps, and puddles with a lot of organic matter, and is a member of the genus Euglena, or one of its species, E. proxima (illustration). In zoology, it is classified as a flagellate in the phylum Protozoa. It sometimes grows in large numbers, forming water blooms that turn the water green. There are many species in the Euglena genus, and since it was first discovered by Leeuwenhoek in 1674, over 150 species have been reported worldwide, of which about 20 species are known in Japan.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:
有機物の多い池,沼,水溜りなどに生育する緑色の単細胞藻類のミドリムシ藻綱ミドリムシ属Euglena(ユーグレナ)またはそのうちの1種E.proxima(イラスト)をさす。動物学では原生動物門の鞭毛虫綱に分類される。ときどき大繁殖して水の華を形成し,水を緑色に変色させることがある。ミドリムシ属は種類数が多く,1674年にレーウェンフックが初めて発見してからこれまで世界では150余種の報告があり,そのうち日本には約20種類が知られる。

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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