Diversity of Crab Forms (IMAGE) Yale University Caption The diversity of body forms among crabs, including the enigmatic Callichimaera perplexa (center). Credit Photos, Arthur Anker & Javier Luque; figure, Javier Luque, Yale University 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.