Blue Crab Molt

Callinectes sapidus

Markings and exact colorations may vary.

A perfect, empty crab shell, paper light — a shed skin, not a dead crab.

Typical size
3–8 in across
How often it turns up
Common
Collecting
Usually legal to collect

Empty molts are free to collect.

Handling
Safe to handle

How to tell it apart

  • Completely hollow and very light
  • Split along the rear edge of the carapace
  • Blue claw tips, red on females

Where to find these in Florida

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

Found one?

Photograph it and BeachNut ranks the likely matches with a confidence read, then logs it to your collection with the beach and date.

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