因这种鲨鱼的头形如锤子而得名。
He hath his Name not unaptly from the hape of his Head, very different from that of all other Fihes, being pread out horizontally, like the Beam of a Balance; his eyes tanding at the two extremes, as the iron Hooks do at the end of the Beam. He grows sometimes to the length of four or five yards: but this is a young one. [Nehemiah Grew, M.D., "Catalogue & Decription Of the Natural and Artificial Rarities Belonging to the Royal Society And preerved at Greham Colledge. Whereunto is Subjoyned the Comparative Anatomy of Stomachs and Guts. By the ame author" London, 1681 ].
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