Ctenophore (Pleurobrachia) (IMAGE) Marine Biological Laboratory Caption Ctenophore Pleurobrachia with ctenes (along left side of body) at different stages of their power stroke. Credit Sean Colin Usage Restrictions None 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.