The desert rainbow-skink (Carlia triacantha) is an Australian skink in the genus Carlia, commonly known as four-fingered skinks, from the subfamily Lygosominae. It is native to desert woodland regions throughout most of the Northern Territory, the north of Western Australia, and the far north-west of South Australia. It was originally classified as Leiolopisma triacantha, and is sometimes known as the three-spined rainbow-skink.

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