How do you say annelid in Chinese?
— 环节动物门; 环节动物门

Generic synonyms for annelid in Chinese
worm蟲子, 虫子 (chóngzi), 蟲, 虫 (chóng)
Specialized synonyms for annelid in Chinese
leech螞蟥, 蚂蟥 (mǎhuáng)