<i>Petrolisthes virgilius</i> (IMAGE) Smithsonian Tropical Research Institute Caption Although initially mistaken for Petrolisthes tonsorius in the 1970s, the uncommon colors and atypical habitat of Petrolisthes virgilius led the scientists to corroborate through genetic analyses that it was a new species. Credit Alexandra Hiller and Bernd Werding 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.