Branchiomma luctuosum (IMAGE) University of Barcelona Caption El poliqueto invasor 'Branchiomma luctuosum'. Credit Manuel Ballesteros (UB) Usage Restrictions Credit must be given to the creator. License CC BY 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.