Top view of a pnk barrel sponge looking like a saucer against the cyan reef bottom, Cenderawasih Bay, West Papua, Indonesia.

cenderawasih bay demospongiae haplosclerida indo pacific ocean indonesia petrosiidae siliceous sponges southeast asia west papua xestospongia animal animal themes animals in the wild aquatic barrel sponge beauty in nature circle circular color image day ecosystem filter feeders growth horizontal invertebrate large living organism marine biology nature no people ocean floor outdoors photography pink porifera reef round sea life sessile sphere sponge tropical climate undersea underwater wildlife