Scalloped Hammerhead (IMAGE) Stony Brook University Caption This is a scalloped hammerhead (Sphyrna lewini) at Cocos Island, Costa Rica. Credit Terry Goss 2008/Marine Photobank Usage Restrictions Use photo credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.