Common Atlantic Slipper Shell

Crepidula fornicata

Common Atlantic Slipper Shell

A humped oval shell with a shelf inside, like a tiny boat with a deck — often found stacked in chains.

Typical size
0.75–2 in
How often it turns up
Very common
Collecting
Restricted

Florida allows no live shelling in many counties and parks. If the animal is still inside, photograph it and put it back where you found it.

Handling
Safe to handle

How to tell it apart

  • Internal white shelf covering half the opening
  • Arched oval outline
  • Frequently stacked on other shells

Found one?

Photograph it and BeachNut will rank the likely matches, then log it to your collection.

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