
The Atlantic Mud Piddock
The Atlantic Mud Piddock, Barnea truncata (Say, 1822) is a bivalve that bores into hard clay and soft rock. It will settle as a larva onto the host rock, and will grow as it bores into it. The resulting borehole is conical (with the narrow end toward the rock surface), and the Piddock ends trapped inside the rock for life. The Atlantic Mud Piddock is a close relative of the Angel Wing. Despite its very broad geographical distribution in the Atlantic Ocean (from Canada to Florida, Gulf of Mexico,