Atlantic Slipper Shell
Slipper shells are a common type of snail found along the Atlantic coast. In life they stay fixed to object that they are attached to. It is not uncommon to see them stacked one on top of another or attached to the underside of a horseshoe crab They feed on algae that stick to their large sticky mantle. The shells are frequently found along the beach. The little shelf in the slipper shell gives it somewhat the appearance of a little shoe, hence the name.