真鲨目，双髻鲨科，俗名路易氏丫髻鲨、红肉丫髻鲛、红肉双髻、犛头沙、双髻鲨、双过仔。路氏双髻鲨分布在大西洋、印度洋和太平洋温带至热带海域。它也生活在西地中海。在中国常见于南海、东海和黄海。暖水性中小型鲨鱼 ，性凶猛，食小型鱼类。
学名：sphyrna lewini
英文名：Scalloped Hammerhead
This species belongs to the family of Sphyrnidae,order of Carcharhiniformes. Distributed in the Atlantic, Indian Ocean and Pacific temperate to tropical waters.It also lives in the Western Mediterranean,common in the South Sea, the East Sea and the Yellow Sea of China.It’s a small and medium sized shark, ferocious and lives on small fish.