The natterjack toad ("Epidalea calamita", formerly "Bufo calamita") is a toad. They live in the sandy and heathland areas of Europe. Adults are 60–70 mm in length. They are different from other toads because they have a yellow line down the middle of the back. They have relatively short legs. This gives them a distinctive gait, which is different than the hopping movement of many other toad species.