still life image of driftwood and seashells on a blue background.

wood yellow pattern still life driftwood seashells blue background sea shell marine mollusk seashell hard protective animal body found beaches beachcombers shells floating washed ashore flotsam ocean exoskeleton invertebrate backbone calcium carbonate chitin mollusks crabs brachiopods annelid worms family serpulidae surfaces urchins moulted exuviae cephalopods habitats freshwater animals mussels water coastline seashore inlet shoreline tide wave waves sand • sea • tide • brine • briny • briny deep saltwater salt salty foamy