Atlantic Modulus

Modulus modulus

Markings and exact colorations may vary.

Photo: Josiah Londerée via iNaturalist · CC BY 4.0 · cropped & resized · source

A small, squat, top-shaped snail with a distinct notch at the base of its lip.

Typical size
0.3–0.6 in
How often it turns up
Common in grass-flat drift
Collecting
Usually legal to collect

Empty shells are fine to keep. Do not pull live snails off seagrass.

Handling
Safe to handle

How to tell it apart

  • Low, wide, top-shaped shell
  • Beaded spiral cords
  • Small pointed tooth at the base of the aperture

Where to find these in Florida

Beaches rated very good or excellent for shells. Each page shows today’s score, the best window and access details.

Found one?

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