Meet the Sand-plain Worm LizardArticle | Updated 3 months ago Sand-plain Worm Lizard Brad Maryan The Sand-plain Worm Lizard, or Aprasia repens, is a terrestrial reptile that grows up to 18cm in length. Sand-plain Worm Lizard Image copyright Brad Maryan Ancestry and Appearance Worm Lizards are actually a group of small, slender, legless geckos called 'pygopods'. They possess no remnants of their gecko ancestry, and instead have evolved long thin bodies, and are a pale greyish-brown colour. The scales on their head are greatly reduced compared to geckos, and this is the key to identifying the Sand-plain Worm Lizard in many cases. Breeding These reptiles do still have things in common with other gecko relatives, however. For example, like other geckos, they produce two eggs per clutch in the springtime. Behaviour The Sand-plain Worm Lizard spends almost all of its time below the surface of the sand, and as such is rarely seen, except perhaps after showers.