Shell Identification Guide

Every shell tells a story of the creature that once called it home. Learning to identify shells transforms a simple beach walk into a treasure hunt filled with discovery, curiosity, and a deeper connection to the coast.

Whether you're strolling the beaches of New Jersey, exploring the Outer Banks, searching for treasures along South Carolina's shoreline, or visiting the shell-rich beaches of Florida, understanding what you're finding makes every collection more meaningful.

How to Identify a Shell

Start by observing the shell's overall shape.

Shells generally fall into two categories:

Univalves

These are single-piece spiral shells such as whelks, conchs, olives, moon snails, and augers.

Common characteristics:

• Spiral shape
• Single opening
• Often pointed at one end
• Usually thicker and heavier

Bivalves

These shells consist of two hinged halves.

Common examples include:

• Scallops
• Clams
• Oysters
• Mussels
• Cockles

Common characteristics:

• Two matching sides
• Hinge along one edge
• Fan-shaped or rounded appearance

Features to Examine

Color

Natural shell colors can help narrow identification. Look for:

• White
• Cream
• Pink
• Lavender
• Orange
• Brown
• Gray

Remember that sun exposure and wave action can fade colors over time.

Texture

Run your fingers across the shell. Look for:

• Smooth surfaces
• Ridges
• Knobs
• Spines
• Growth lines

Some species have highly distinctive textures that make identification easier.

Size

Size often helps distinguish similar species.

A moon snail may appear similar to a young whelk, but mature sizes differ considerably.

Photographing shells beside a coin or ruler helps with future identification.

Common East Coast Shells

Scallops

Fan-shaped shells with beautiful radiating ribs.

Commonly found throughout the Atlantic Coast from New Jersey to Florida.

Colors range from white and cream to pink, orange, and purple.

Whelks

Large spiral shells often considered favorites among collectors.

Look for:

• Knobbed Whelks
• Channeled Whelks
• Lightning Whelks

Commonly found after storms and during low tides.

Lettered Olives

Smooth, glossy shells featuring beautiful script-like markings.

Most common on southern Atlantic beaches and highly sought after by collectors.

Moon Snails

Often called Shark Eyes.

Recognizable by:

• Round shape
• Smooth surface
• Circular pattern

Excellent beginner shell.

Cowries

Highly polished shells with a narrow slit underneath.

Cowries are prized by collectors due to their glossy appearance and porcelain-like finish.

Augers

Long, narrow shells resembling screws.

Most often found on southern beaches and in deeper shell deposits.

Shelling Tips & Reminders

• Check local regulations before collecting.
• Collect only empty shells.
• Arrive at low tide whenever possible.
• Search after storms for the best finds.
• Carry a mesh bag to rinse sand naturally.
• Photograph unusual finds before cleaning.
• Leave live animals undisturbed.
• Take only what you will appreciate and display.

The best collections are not necessarily the largest. Often, the most meaningful shells are those tied to a favorite beach, family trip, or special memory.

Ready to Learn More?

Our complete Shell Identification Guide includes detailed state-by-state shelling guides for Maryland, Delaware, New Jersey, North Carolina, South Carolina, and Florida, along with beach-specific shelling tips, seasonal calendars, range maps, collector checklists, and hundreds of shell identification photos.

Downloads

• Complete East Coast Shell Identification Guide
• Maryland & Delaware Shelling Guide
• New Jersey Shelling Guide
• North Carolina Shelling Guide
• South Carolina Shelling Guide
• Florida Shelling Guide