Giant barrel sponge (Xestospongia muta) exhibiting exposed tissue where portions of the barrels have been sheared off by storm

Giant barrel sponge (Xestospongia muta) exhibiting exposed tissue where portions of the barrels have been sheared off by storm
Photographer: Hickerson/Flower Garden Banks National Marine Sanctuary (FGBNMS)

From Wikimedia Commons

The elkhorn coral colony at West Flower Garden Bank, located at approximately 27°54'33" N, 93°35'59" W, in the northwestern Gulf of Mexico, is situated behind the barrel sponge in this photo (October 2008) .