Sep 52 min read

Types of Shells: 6 Common and Rare Seashells

Updated: 5 hours ago

Seashells are some of the most fascinating and beautiful treasures found along coastlines worldwide. These natural wonders come in a variety of shapes, sizes, and colors, each telling a story about the marine creatures that once inhabited them. In this guide, we’ll explore different types of seashells, from common finds to rare gems, and how they form an essential part of marine ecosystems.

6 Types of Shells

1. Murex Shell

Murex shells, also known as rock snails, are famous for their intricate designs, often featuring delicate spines or frills. These predatory sea snails live in tropical and temperate waters, and their beautiful shells are highly prized by collectors. One standout species is the Venus comb murex, named for its long, comb-like spines(TagVault.org).

Close-up of an intricate murex shell with spines and frills, displayed on a rocky beach with gentle waves in the background

2. Conch Shell

Conch shells are among the most recognizable and sought-after shells, often used in jewelry and as musical instruments. The Queen Conch is the most famous, found in the warm waters of the Caribbean and the Gulf of Mexico. Known for its large size and vibrant pink interior, the Queen Conch has been overfished, making intact specimens increasingly rare.

Queen Conch shell resting on a sandy shoreline with its pink interior, bathed in warm sunlight with a tropical sea in the background.

3. Cowrie Shell

Cowries have been used as currency, jewelry, and symbols of fertility for centuries. Their smooth, glossy surfaces and vibrant patterns make them popular among collectors. One rare type is the Hundred-eyed cowrie, with distinctive brown spots that resemble eyes.

Close-up of a glossy cowrie shell resting on fine sand, reflecting sunlight, with small shells and pebbles scattered in the background.

4. Razor Clam Shell

These long, narrow shells are usually found buried in the sand in shallow waters. The challenge in finding them is that their two valves are often separated. Razor clams are notable for their sharp edges, which give them their name(animalwised.com).

Razor clam shell partially buried in wet sand, with its sharp edges visible, as gentle waves wash over the beach in the background."

5. Cockle Shell

Cockles are a type of bivalve known for their heart-shaped, ribbed shells that range in color from white to deep red. These shells are common on beaches around the world and are admired for their symmetrical beauty(TagVault.org, animalwised.com).

Heart-shaped cockle shell with ribbed surface and deep red color resting on a sunlit beach, contrasting against pale sand.

6. Nautilus Shell

The Nautilus shell is a unique spiral structure belonging to a marine cephalopod. With a striking, smooth exterior and complex internal chambers, the Nautilus shell has fascinated collectors and scientists alike for its beauty and biological significance(animalwised.com).

Stunning nautilus shell displayed against a neutral background, showcasing its intricate spiral chambers and pearlescent layers reflecting light

Seashells are more than just beach treasures—they are vital to marine ecosystems and have cultural significance worldwide. Whether you are beachcombing for fun or collecting rare specimens, the diversity of shells offers something for everyone. From the intricate murex to the iconic conch, these natural wonders continue to captivate and inspire.