Amphisbaena xeraAmphisbaena xera, known commonly as the dry worm lizard, Puerto Rican dryland worm lizard, or the North American worm lizard, is a worm lizard species. It is endemic to Puerto Rico.EtymologyThe specific name, xera, which is from Greek via Late Latin, means "dry".Geographic rangeIt is found in Puerto Rico, both on the main island and also on the offshore Isla de Caja de Muertos.