How to identify a moon snail
Almost spherical outline with a low spire and a wide crescent aperture. In the Shark Eye (Neverita duplicata) the dark spiral at the top forms the 'eye', and a callus partly fills the umbilicus.
- Nearly spherical body whorl
- Wide crescent aperture with a low spire
- Dark spiral 'eye' at the apex and umbilical callus on the Shark Eye
- Family
- Naticidae
- Class
- Gastropod
- Regions
- East Coast · Gulf Coast
- Habitat
- Sandy Intertidal · Sandy Subtidal
- Collector level
- Beginner
In your journal
- Look for the drilled bevel-edged hole on empty bivalves nearby — that's the moon snail's calling card.
- Sketch the dark spiral 'eye' at the top of the shell if your specimen is a Shark Eye.







