1350-6272 - A couple of butterfly blenny (Blennius ocellaris) peeps out from inside a fan mussel (Pinna nobilis), that they chose as the nest for hatching their eggs.
860-287539 - Dead fan mussel and diver, Mediterranean Sea. Massive mortality of Noble Pen Shell (Pinna nobilis) infected with the parasite Haplosporidium. Porticcio. Corsica. Mediterranean.