Some skinks have a blue tail - specifically the Blue-tailed Skink (Cryptoblepharus egeriae). They have a bright blue tail as juveniles but the tail tends to darken in males as they become mature. The females usually retain the blue color in their tales into adulthood.
Some skinks have blue tongues. There are 8 species of blue-tongued skinks.
- Adelaide pygmy blue-tongue skink or pygmy bluetongue (T. adelaidensis)
- Indonesian blue-tongued skink (T. gigas)
- Centralian blue-tongued skink (T. multifasciata)
- Blotched blue-tongued lizard, aka southern blue-tongued lizard, aka blotched blue-tongued skink (T. nigrolutea)
- Western blue-tongued lizard (T. occipitalis)
- Shingleback (T. rugosa )
- Australian blue-tongued skink (T. scincoides)
- Irian Jaya (Tiliqua sp.)
7 out of the 8 are indigenous to Australia;
Tiliqua gigas is only found in New Guinea and some islands of Indonesia.
Tiliqua scincoides is also found on several small Indonesian islands between Australia and New Guinea.
Tiliqua nigrolutea is the only species present in Tasmania.
