sentences:  Scalloped hammerhead
  
  The scalloped hammerhead ("Sphyrna lewini") is a species of hammerhead shark, and part of the family Sphyrnidae.Originally known as "Zygaena lewini", its genus name was later changed to its current name.The Greek word "sphyrna" translates into "hammer" in English, referring to the shape of this shark's head.