The Mexican mole lizard (Bipes biporus), commonly known as the five-toed worm lizard, or simply as Bipes, is a species of amphisbaenian, which is endemic to Baja California, Mexico. It is one of four species of amphisbaenians that have legs. It should not be confused with the axolotl, a salamander (Ambystoma mexicanum), which is usually called ajolote in Spanish.
They are pink, lizard-like reptiles, 18–24 cm (7.1–9.4 in) snout-to-vent length and 6–7 mm (0.24–0.28 in) in width, that live for one to two years. Their skin is closely segmented to give a corrugated appearance, and like earthworms, their underground movement is by peristalsis of the segments. The forelegs are strong and paddle-like, while the hindlegs have disappeared, leaving behind only vestigial bones visible in X-rays.
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