Yellow spotted lizard

The skin is covered with scales, the larger ones are on the upper side of the body and smaller ones on the belly of the lizard.

An excerpt from the article 15 facts about Yellow spotted lizard
The scales are rough and give the body a specific texture. Those that cover the underside of the body are smoother and facilitate the movement of the animal. The finest scales cover the head, and at this point resemble the skin of a snake.