Arctica islandica, the Icelandic Clam (image) University of Exeter Share Print E-Mail Caption This is Arctica islandica, the Icelandic clam. Longest-lived species known to science. Credit Paul Butler Usage Restrictions Credit Paul Butler 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.