Black-clawed Crab

Scientific Name: Lophopanopeus bellus

Category: other

Black-clawed Crab

Brief Description

A small, stony-looking crab with prominent black tips on its claws, common in rocky intertidal zones.

Characteristics

The carapace is generally hexagonal or fan-shaped and can vary in color from brown to purple or gray. A key feature is the black coloration on the fixed and movable fingers of the claws. The shell and legs often have a lumpy, textured appearance.

Habitat

Low intertidal and subtidal zones, typically found hiding under rocks or among oyster beds and eelgrass.

When to Find It

Can be observed year-round, most easily found during low tide.

Conservation Status

N/A

Ecological Role

They serve as both predators of small invertebrates like snails and barnacles, and as prey for larger fish, octopuses, and birds.

Easily Confused With

Often confused with the Pygmy Rock Crab (Glebocarcinus oregonensis), which has a more rounded, 'baked potato' shaped carapace and 12 sharp teeth on the edge of the shell.

Observation Tips

Gently lift rocks in the low tide zone of Puget Sound beaches. Always return the rocks to their original position to protect the habitat. Handle carefully as they can pinch.

Interesting Facts

Despite their small size, these crabs are quite strong and use their heavy claws to crush the shells of their prey. They are one of the most common crab species found by tide-poolers in the Pacific Northwest.

User Notes

Puget Sound