The rugged, misty coastline of the Pacific Northwest isn’t just a haven for surfers and nature lovers—it’s also home to some of the most intriguing seashells in North America. Unlike the tropical, bright-colored shells found on warmer beaches, the shells here often reflect the wild nature of the region, boasting intricate patterns, muted tones, and fascinating evolutionary adaptations.

Top Unique Seashells Found in the Pacific Northwest

Olympia Oyster Shells (Ostrea lurida) – These small, rough-edged shells belong to a species native to the region. Olympia oysters were once abundant but have declined due to habitat loss, making their shells a rare find on the shoreline.

Leafy Hornmouth (Ceratostoma foliatum) – With its spiky ridges and swirling shape, the leafy hornmouth shell stands out as one of the most dramatic specimens along these beaches. It belongs to a predatory snail that feeds on barnacles and mussels.

Pacific Razor Clam (Siliqua patula) – These long, smooth shells are remnants of the prized Pacific razor clam, a favorite of beachcombers and seafood lovers alike. Their subtle iridescence gives them a special charm when wet.

Frilled Dogwinkle (Nucella lamellosa) – This thick-walled shell features stunning frilled ridges that help protect the snail inside. Found mostly on rocky shores, its coloration can vary from a pale white to deep orange hues.

Butter Clam (Saxidomus gigantea) – These round, sturdy shells can be quite large, sometimes reaching palm-sized proportions. Butter clams are a favorite among foragers, and their shells often wash up in clusters after a storm.

The Oregon Triton Shell (Fusitriton oregonensis) - This carnivorous snail, also known as the Oregon Hairy Triton, is a fascinating marine gastropod found along the Pacific Northwest coast. These shells grow to be 5 inches long and are usually light brown and it grows a coat of bristles that make it look hairy. It produces sulferic acid to help it bore through the shells of its prey!

Where to Find These Seashells

The best places to search for unique shells in the Pacific Northwest are sandy beaches after winter storms or rocky tide pools at low tide. Areas like Washington’s Olympic Peninsula, Oregon’s Cannon Beach, and Vancouver Island’s coastal spots are especially promising for shell seekers.

While collecting shells can be a fun and rewarding activity, it’s important to follow local regulations and practice ethical beachcombing. Some protected species, such as Olympia oysters, are best admired rather than taken home.