Red Rock Crab
Scientific Name: Cancer productus
Category: other
Brief Description
A medium-sized crab common in the intertidal and subtidal zones of the Pacific coast, known for its thick red shell and black-tipped claws.
Characteristics
Features a heavy, fan-shaped carapace that is brick-red in adults. The claws are large and strong with distinct black tips. Unlike Dungeness crabs, these have a smoother carapace without white spots.
Habitat
Intertidal and subtidal zones, typically found on rocky shores, gravelly bottoms, or buried in mud/sand near protection.
When to Find It
Can be observed year-round; best viewed during low tide in the rocky intertidal zone.
Conservation Status
Common / Least Concern
Ecological Role
Functions as both a predator and a scavenger, eating barnacles, snails, and other small crustaceans, helping regulate intertidal populations.
Easily Confused With
Dungeness Crab (Metacarcinus magister) - Red Rock Crabs are redder and have black-tipped claws, whereas Dungeness are purplish-brown with white-tipped claws.
Observation Tips
Look under rocks or in tide pools at low tide. Be careful when handling as they are quite aggressive and have a powerful pinch. Always return rocks to their original position.
Interesting Facts
Red Rock Crabs are popular for recreational fishing but have less meat than Dungeness crabs. Their shells are exceptionally hard, which protects them from predators like octopuses.
User Notes
Washington state beach