SPINIFEX STRIPED GECKO Diplodactylus taeniatus (Lonnberg and Andersson, 1913)
Found throughout drier parts of North and North West Australia, this small gecko only attains 7 cm, and is of very slender build. It appears to be strictly associated with spinifex Triodia sp., and similar related grasses in which it lives.
When within the spinifex bushes this lizard moves like a stick insect. Its tail is prehensile, and rarely shed. Most specimens are caught crossing roads at night in spinifex country.
This lizard is capable of exuding an annoying sticky substance from its' tail. When caught it will open its mouth widely, displaying a bright orange interior.

The above was from the book Australian Reptiles and Frogs by Raymond Hoser and now available on a fantastic CD-Rom along with a vast amount of other information, papers and the like on reptiles, frogs and other wildlife.