Blue Crab (Callinectes Sapidus) (image) Marine Biological Laboratory Share Print E-Mail Caption This is a blue crab, Callinectes sapidus, caught in Ipswich, Mass., 80 miles north of its historical native range. Credit David Samuel Johnson Usage Restrictions Please use with proper credit. Share Print E-Mail 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.