This definition is the best one I've seen.
"The shell is the outer skeleton of the soft-bodied mollusk…composed of calcium carbonate, a common component of the mineral salts in seawater."
from Shells: Treasures of the Sea by Leonard Hill
Hugh Lauter Levin Associates, Inc. 1996, p. 67
The Relaxing "Sport" of Collecting Seashells
Favorite Shells
- Keyhole Limpet
- Sundial
- Scallop
- Florida Fighting Conch
- Horse Conch
- Wentletrap
Shells from Sanibel Island, Florida
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