Moon Jelly
Aurelia aurita · Also known as: moon jellyfish, saucer jelly
The classic translucent “saucer” jelly of Ocean City beaches. Mild sting, four horseshoe gonads, and frequent wash-ups after warm spells.
Quick facts
| Group | Jellyfish / siphonophore |
|---|---|
| Likelihood nearby | ★★★★★ |
| Habitats | Ocean beach, Coastal bays, Inlet, Offshore / ocean, Assateague State Park, Assateague National Seashore |
| Seasons (this coast) | spring, summer, fall |
How to recognize them
- Clear, saucer-shaped bell usually 4–10 inches across with a short fringe of fine tentacles.
- Four pinkish horseshoe-shaped gonads visible through the center of the bell.
Biology notes
- True jellyfish (scyphozoan) that pulse slowly and feed on tiny plankton with short tentacles.
- Sting is usually mild for most people compared with sea nettles; still can irritate sensitive skin.
Where to see them around Ocean City
- Ocean City and Assateague ocean beaches in the wash after onshore winds.
- Calm bay and Inlet waters during warm-season blooms.
When to look
- Peak late spring through early fall; empty bells common after storms.
Viewing tips & etiquette
- Look, don’t touch—even “mild” jellies can sting. Rinse with seawater, not fresh water, if you do.
- Watch kids around washed-up bells; tentacles may still fire.
