Cannonball Jelly

Stomolophus meleagris

Markings and exact colorations may vary.

A firm, dome-shaped jelly with a brown-rimmed bell, one of the most common strandings in the Gulf.

Typical size
5–10 in
How often it turns up
Very common
Collecting
Protected, do not collect

Living beach animals should be photographed and left where they are. Many are protected, and most cannot survive being moved.

Handling
May irritate skin

How to tell it apart

  • Solid, rubbery dome like half a ball
  • Brown or purple band around the rim
  • No long trailing tentacles

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.

Browsing beaches and the full field guide is free. A free account logs unlimited finds and gives you three photo identifications a day.

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