The Iberian worm lizard or European worm
lizard (Blanus cinereus) is a species of reptile in the family Blanidae (worm lizards). It was formerly placed in the family Amphisbaenidae.
There are 130 species of amphisbaenians, most of which are found in Africa, South Africa, and the Caribbean islands. The Iberian worm lizard is locally known as cobra-cega (Portuguese), culebrilla ciega (Spanish), and colobreta cega (Catalan), all meaning "blind snake". Since the Iberian worm lizard lives under ground and is fairly small, there is not a lot of information on this reptile.
The Iberian worm lizard is found within Portugal and through most of central and southern Spain.
It is a subterranean species found in a wide variety of Mediterranean habitats. It is difficult to determine the abundance of this species, but it appears to be most common in areas of sandy and moist soil in which it is easy to burrow and which have a high level of humus. They are rarely seen above ground except in days of heavy rain.