On rock scallop
Intertidal at Otstoia Island
1-2 cm in diameter on vertical rock
A single valve washed up on the beach, and a very small pair of valves still stuck to pieces of seaweeds.
Found on the beach.
Found washed up on the beach.
Dozens on rock face
Brachiopods, phylum Brachiopoda, are marine animals that have hard "valves" (shells) on the upper and lower surfaces, unlike the left and right arrangement in bivalve molluscs. Brachiopod valves are hinged at the rear end, while the front can be opened for feeding or closed for protection. Two major groups are recognized, articulate and inarticulate. Articulate brachiopods have toothed hinges and simple opening and closing muscles, while inarticulate brachiopods have untoothed hinges and a more complex system...