Any of several large predatory sharks of the genus Sphyrna,having the sides of the head elongated into large,fleshy extensions with the eyes at the ends.

 
  • 槌头双髻鲨,属于双髻鲨属的大型食肉鲨鱼中的一种,它们的头部向前延伸得又大又肥胖,两只眼睛位于顶端。
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