Moon Snail Sand Collar

Naticidae egg mass

Markings and exact colorations may vary.

A rubbery ring of sand and mucus shaped like a shirt collar — a moon snail's egg mass.

Typical size
2–6 in across
How often it turns up
Common
Collecting
Protected, do not collect

Sand collars are living egg masses. Photograph them and return them to the water.

Handling
May be alive

How to tell it apart

  • Curved collar or ring shape
  • Made of fine sand held together with jelly
  • Falls apart as it dries

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.

More not sure in the field guide

Browse every not sure in the guide

Get Florida beachcombing tips

Occasional emails: what's washing up, shelling tips and new BeachNut features. No spam, unsubscribe any time.