Scalloped hammerhead
The scalloped hammerhead (Sphyrna lewini), also known as the bronze hammerhead, the kidney-headed hammerhead, or the southern hammerhead, is a species of hammerhead shark. It was first known as zygaena lewini, but is now known as Sphyrna lewini. The word Sphyrna is a Greek word meaning "hammer", which refers to the "hammer" or "cephalofoil" on its head.