Blue Crab (<i>Callinectes Sapidus</i>) (IMAGE) Marine Biological Laboratory Caption This is a blue crab, <i>Callinectes sapidus</i>, caught in Ipswich, Mass., 80 miles north of its historical native range. Credit David Samuel Johnson Usage Restrictions Please use with proper 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.