Biology/Natural History: The animal is solitary. When it reproduces, the fertilized eggs develop into a characteristic, but nameless, larva. The larva does not feed and is planktonic. The larva attaches and then develops into an adult. The main predators of this species appear to be crabs, which chip off parts of the margin of the shell to reach the soft part. The lampshell may survive these attacks and many show asymmetrical shell growth from repairs that have been made.