Bipes (lizard)
Bipes is a genus of amphisbaenians found only in Mexico, the sole living member of the family Bipedidae. Commonly known as "ajolotes", they are carnivorous, burrowing reptiles, but unlike other species of amphisbaenians, they possess two stubby forelimbs placed far forward on the body. They also retain an almost complete pectoral girdle. The shovel-like limbs are used to scrape away soil while burrowing, in a manner similar to a mole. Evidence for their occurrence in the United States is reviewed by Somma (1993).