<i>Phyllorhiza punctata</i> (IMAGE) Dauphin Island Sea Lab Caption The Australian spotted jellyfish can weigh up to 25 pounds. Credit Dan Martin/Dauphin Island Sea Lab 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.