The polished crab lives burrowed in sandy sea bottoms. It looks for food between the grains. Because polished crabs don't live close to the coast, they are generally only found after storms and sand nourishments, washed up onto the shores. The small carapace of these crabs is surrounded by a rim of hair. In Dutch, they are called 'nail crabs', because its carapace resembles the nail of a bit toe.