Systematics and Distribution
Blue-tongued skinks are closely related to the genera Cyclodomorphus and Hemisphaeriodon. All species are found on mainland Australia with the exception of Tiliqua gigas, which occurs in New Guinea and various islands of Indonesia. One subspecies of Tiliqua scincoides is also found on several small Indonesian islands between Australia and New Guinea. Tiliqua nigrolutea is the only species present in Tasmania. With the exception of the pygmy blue-tongue, they are relatively large lizards (up to 45 cm total length), light-bodied, short-limbed, broad with distinct heads and dull teeth.
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