单词 | 纽形动物 |
释义 | 〔nemertean〕Any of several velvety, usually brightly colored worms of the phylum Nemertina (or Nemertea) that have a flat, unsegmented body with an extensible proboscis and live in the sea or in the mud of the intertidal zone. Also called ribbon worm 纽形动物:扁形动物门的一个纲,具有柔软身体、常常是鲜艳颜色的蠕虫,无体腔、不分节、可收缩,生活在海中或潮湿地带的泥中 也作 ribbon worm〔worm〕Any of various invertebrates, as those of the phyla Annelida, Nematoda, Nemertea, or Platyhelminthes, having a long, flexible, rounded or flattened body, often without obvious appendages.虫:几种无脊椎动物中的一种,如环节动物门、线虫类、纽形动物或扁形动物门,有长的、柔软的、圆的或扁平的身体,经常没有明显的附属肢体 |
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