Neolithodes grimaldi, also known as the porcupine crab, is a deep water member of the king crab family and is found on the sea bed along the continental slope on both sides of the Atlantic Ocean. Its dark red colour and long sharp spines give it a distinctive appearance. The crab has three pairs of walking legs and one pair of claws. The right claw is larger than the left and is probably used for crushing while the smaller left claw is most likely used for handling food. There is also a fifth pair of legs under the carapace that is used for cleaning its gills. As the name suggests the crab is covered with long spines on its carapace and walking legs.