Bipes is agenus ofamphisbaenians (or worm lizards) found only inMexico, the sole living member of thefamilyBipedidae.[2] They arecarnivorous,burrowing reptiles, but unlike otherspecies of amphisbaenians, they possess two stubby forelimbs placed far forward on the body.[3] They also retain an almost complete pectoral girdle.[4] The shovel-like limbs are used to scrape awaysoil while burrowing, in a manner similar to amole.[5] Evidence for their occurrence in the United States is reviewed by Somma (1993).
Latreille PA (1801).In:Sonnini CS, Latreiile PA (1801).Histoire naturelle des reptiles, avec figures desinées d'après nature; Tome II. Premiere partie. Quadrupèdes et bipèdes ovipares. Paris: Crapalet. 332 pp. (Bipes, pp. 90–96.)
Taylor EH (1951). "Concerning Oligocene Amphisbaenid Reptiles".University of Kansas Science Bulletin34 (9): 521–579. (Bipedidae, p. 522.)
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