Spirastrella sponge
This is a sponge of rugged and sturdy structure, forming bark coverings only a few millimeters thick. It is of orange or red color and
inhabits rocky and shaded bottoms to 60 m depth. At lesser depths it is frequently on the overhangs.
On the lower picture it is the one to the down left.
Spužva spirastrella
Spužva hrapave i čvrste strukture, formira koraste presvlake debele tek nekoliko milimetara. Narančaste je do crvene boje. Nastanjuje
stjenovita i zasjenjena dna do 60 m dubine. Na manjim dubinama česta je na prevjesima.
Na donjoj slici se nalazi lijevo dolje.