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Lanthanotidae (earless monitor; order Squamata, suborder Sauria) A mono-specific family (Lanthanotus borneensis), from Borneo, comprising an elongate lizard with short limbs and a long tail with no autotomy. It grows up to 43 cm long. The lower eyelid is transparent. The lizard feeds on fish and invertebrates. It burrows and swims. It may be a survivor of the lizard group ancestral to snakes.