A Beginner's Guide to Shells

Are you a seashell novice? Use our helpful guide to figure out what you've found.

Helmet Shells
Jean Allsopp

Helmet Shells

  • Eleven species of this mollusk are known to live in North American waters.
  • Look for whorled shells with a short spire and a thick outer lip that can be either toothed or smooth.

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Helmet Shells

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