Stony Sponge

Petrosia ficiformis

• Group: Other

A firm, stony textured sponge that favours rock faces, caves and crevices below about 5 metres and on down into deep water. Its colour gives away where it lives: pale where symbiotic algae are absent inside caves and overhangs, darker out in the open where those algae thrive.

Taxonomy: Animalia › Porifera › Demospongiae › Haplosclerida › Petrosiidae › Petrosia

Species data via the World Register of Marine Species (WoRMS), AphiaID 166837.