| 释义 |
jawless fish AHD[jôʹlĭs] D.J.[ˈdʒɔːlɪs]K.K.[ˈdʒɔlɪs]n.（名词）- Any of several eellike marine and freshwater fishes lacking a jaw and paired appendages that constitute the subphylum Agnatha. The only present-day jawless fish are the hagfish and lampreys.无颚纲鱼类：一个类似鳗鱼的无颚骨的、有一对附肢的海生或淡水无骨鱼种类，属无颚亚门。现存的无颚鱼类仅有盲鳗和八目鳗
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