疣足

tǐ bì de fù shǔ wù zhǔ yào bāo kuò sāi yóu zú gāng máo hé shèn guǎn děng jié gòu

体壁的附属物主要包括鳃、疣足、刚毛和肾管等结构。

The appurtenances of the body wall consisted of gill, parapodum, chaetae and metanephridium.