This sponge may be off-white, grey or brown in colour and consists of a single tubular structure with a hairy appearance. The tube is attached to the substratum at one end and open at the other. A crown of spicules surround the open end. There may be more than one species involved here. May be confused with Grantia compressa however this species is flattened not tubular, has a smooth surface and lacks the crown of spicules.
No one has provided updates yet.