The Touloulou (in Creole) or Tourlourou crab (Gecarcinus lateralis) takes its name from an old and popular term that designated the infantry soldiers of the First World War dressed in a blue jacket and madder red pants. This bright red land crab has a large black to purple patch on the central part of its shell. It is common in Martinique, where it is highly valued for its flesh. Active especially at night, it likes dry land and digs tunnels in the sand not far from the shore under the cover of the forest and copses. The crustacean thus promotes soil aeration by participating in the degradation of the animal and plant debris on which it feeds. It is caught by placing traps - locally called z'attrap crab or bwèt à krab on the openings of its burrows.