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Blue tongue lizard redirects here. For the aboriginal Australian myth, see Bluetongue Lizard (mythology).

Blue-tongued skinks comprise the Australasian genus, Tiliqua, which contains some of the largest members of the skink family (Scincidae). They are commonly called blue-tongued lizards or simply blue-tongues in Australia. As suggested by these common names, a prominent characteristic of the genus is a large blue tongue that can be bared as a bluff-warning to potential enemies.