This hypothesis groups annelids with mollusks and brachiopods in another superphylum, Lophotrochozoa.
该假说将圆环类动物与软体动物和腕足动物归为另一类，冠轮动物。
A similar enlargement In the digestive tract of annelids and Insects.
环节动物或昆虫的消化道中的类似扩大部分。
Annelids are soft, moist worms which have rings around their bodies.
环节动物是柔软、黏湿的蠕虫，身体周围有环节。
Annelids are soft, moist worms which have rings around their bodies.
环节动物是柔软、黏湿的蠕虫，身体周围有环节。
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