Results 1 results found Swarms of pelagic crabs (Pleuroncodes planipes), washed up on the beach at Isla Magdalena, Baja California Sur, Mexico, North America Pelagic crab (Pleuroncodes planipes) off the Baja Peninsula, Mexico. This crab is often called the red tuna crab. Pelagic crab (Pleuroncodes planipes) caught in glass with curious boy off the Baja Peninsula, Mexico. This crab is often called the red tuna crab.