Blue-tongued lizards are the largest members of the skink family. There are six species of blue-tongues which occur in Australia. As suggested by its name, its distinguishing characteristic is a blue tongue. All species are relatively large (10-50cm), heavy-bodied, short-limbed, broad, distinct head, and short, tapered tail.

Species include:

• the Common/Eastern Blue-Tongued Lizard (Tiliqua scincoides scincoides)
• the Northern Blue-Tongued Lizard (Tiliqua scincoides intermedia)
• the Central Blue-Tongued Lizard (Tiliqua multifasciata)
• the Blotched Blue-Tongued Lizard (Tiliqua nigrolutea)
• the Western Blue-Tongued Lizard (Tiliqua occipitalis)
• the Shingleback (Tiliqua rugosa)