A general term for annelids belonging to the family Nereidae of the order Polychaeta, order Polychaetida, or one of these species (illustration). Distributed worldwide, with approximately 450 species known, more than 40 of which are known in Japan, including the worm, tubifex, wormworm, lugworm, common worm, worm of the same name ... Source: Heibonsha World Encyclopedia, 2nd Edition Information |
多毛綱サシバゴカイ目ゴカイ科Nereidaeに属する環形動物の総称,またはそのうちの1種を指す(イラスト)。世界中に広く分布し約450種が知られ,日本ではイソゴカイ,イトメ,ジャムシ,ゴカイ,フツウゴカイ,クマドリゴカイ,ウチワゴカイ,エゾゴカイ,アシナガゴカイなど40種以上が知られている。ふつう海岸の石の下や,砂利の中,海藻の根部の間など水深20mくらいまでに生息していて,深海にはほとんど見られない。
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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