A well developed parietal "eye" (with a rudimentary lens and retina) is found on the '''dorsal midline''' in some lizards, including the [[Green Iguana|green iguana]], [[Stump-tailed Skink|blue-tongued skink]] and [[Water Dragon|water dragon]]. | A well developed parietal "eye" (with a rudimentary lens and retina) is found on the '''dorsal midline''' in some lizards, including the [[Green Iguana|green iguana]], [[Stump-tailed Skink|blue-tongued skink]] and [[Water Dragon|water dragon]]. |