The fire sponge, Tedaria ignis, has large internal canals and has been reported as a host to several commensal organisms. Image courtesy of Islands in the Sea 2002, NOAA/OER.
The fire sponge, Tedaria ignis, has large internal canals and has been reported as a host to several commensal organisms. Image courtesy of Islands in the Sea 2002, NOAA/OER.