Wikipedia
Chamaesaura
The Chamaesaura, also known as Grass Lizards, are a genus of legless lizards from southern and eastern Africa. The limbs are reduced to small spikes. Chamaesaura propel themselves like snakes, pushing against contact points in the environment, such as rocks, plants and irregularities in the soil. They are viviparous and eat small invertebrates, especially grasshoppers.