 Where the substrate includes gravel among the sand, the mottled pattern is often larger, there can be small papillae (fleshy protuberances) on the skin, and some light and dark barring on the arms.In some circumstances a white leucophore has been observed on the mantle tip; this may provide a disruptive camouflage when there are white pebbles in the vicinity.Like other octopuses, this species is able to vary its appearance to match its surroundings; when an individual is stationary on the sandy seabed, its colouring, patterning, and even brightness, so closely match the surroundings that the animal is very difficult to discern.