Thick Lucine (image) University of Tennessee at Knoxville Caption These are commonly named thick lucine, Phacoides pectinatus, collected from sediments near Fort Pierce, Fla. Ongoing research focused on P. pectinatus is revealing a much more diverse assemblage of chemosymbionts than previously recognized, including bacteria associated with nitrogen and methane, in addition to sulfur cycling. Credit Annette Engel, University of Tennessee Usage Restrictions None 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.