Coral Reef with Barrel Sponge, Xestospongia testudinaria, Kai Islands, Moluccas, Indonesia

barrel sponge barrel sponge barrel sponges red sponge sponges sea sponge seasponge poriferans phylum sessile filter feeders marine invertebrates animal animals animalia organism eucaryota metazoa parazoa porifera demospongiae haplosclerida ceractinomorpha haliclonidae xestospongia testudinaria coral corals reef coralreef coral reef maluku islands banda sea indopacific ocean asia nature sea ocean sealife marine wildlife marine fauna underwater underwaterphoto underwaterpicture underwaterphotography underwaterworld coral reef with barrel sponge xestospongia testudinaria kai islands moluccas indonesia horizontal n/a n/a rm