I've never seen so many Emerita analoga, aka Pacific Sand Crabs, millions of dead shells all along Limantour Beach. I remember digging these up as a kid.
To the left, with Blepharipoda on the right
NOT the Wandering Tattler, please!
19mm total length. Found in sandy intertidal. Photo scanned from 35mm slide.
Emerita analoga, the Pacific sand crab or Pacific mole crab, is a species of small, sand-burrowing decapod crustacean found living in the sand along the temperate western coasts of America. It is found on exposed sandy beaches in the swash region of the intertidal zone.