Moreover, another fascinating thing that has been found about the "C.lavauxi" is that they are usually found under stones, with their hind legs grasping stones which pushes the back half of the crab up onto the stones clasping it with its talons with the crab using its other legs to support its weight. This is in order to most likely to increase its mobility and stabilize the crab against the effects of tidal action. They also use the pincers and talons to dig burrows and push stones away. These holes have been found to be between 20 and 40 mm deep under the cover of rock. However one of the most perplexing behaviours "C.lavauxi" is its ability to make clicking noises with the sound acting as a sort of distant artillery. It is one of the only crabs in New Zealand who can perform such an action.