worm lizard

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun Any of various small legless burrowing reptiles of the suborder Amphisbaenia, having a wormlike body with scales arranged in rings and found worldwide in subtropical and tropical regions.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun Any of many small limbless burrowing tropical lizards, of the family Amphisbaenidae, that resemble worms.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a lizard of the genus Amphisbaena; harmless wormlike limbless lizard of warm or tropical regions having concealed eyes and ears and a short blunt tail