無む顎がく類るい

noun

agnathans; jawless fishes

Scientific term for the superclass Agnatha, including lampreys and hagfish. Used in biology and paleontology contexts.

• 無む顎がく類るいは顎あごを持もたない原げん始し的てきな魚ぎょ類るいのグループです。

  Agnathans are a group of primitive jawless fishes.