Head of Elysia cf. marginata (IMAGE) Cell Press Caption This image shows the head of Elysia cf. marginata just after autotomy. Credit Sayaka Mitoh Usage Restrictions Credit Required. 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.