A close-up of a Lophelia pertusa calyx with its polyp retracted. Image courtesy of Erik Cordes, Lophelia II 2009: Deepwater Coral Expedition: Reefs, Rigs and Wrecks.
A close-up of a Lophelia pertusa calyx with its polyp retracted. Image courtesy of Erik Cordes, Lophelia II 2009: Deepwater Coral Expedition: Reefs, Rigs and Wrecks.