The Underground Life of the Trinidad Worm-Lizard Amphisbaena alba

John Riley


Amphisbaenians, popularly known as worm-lizards (or in Trinidad, two-headed snakes), belong to the reptile order Squamata where they share an equivalent status with snakes and lizards. There are about 140 species, found mainly in the Americas and Africa, and all are blind burrowing animals. Many posses keel- or shovel-snouted heads to facilitate movement through soils and, although very little is known of their ecology, most appear to exploit the properties of tunnel systems, feeding on a variety of animal prey species such as worms and arthropods.

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