THREE TOED SKINK Siaphos equalis (Gray, 1825)
A 15 cm lizard, the Three Toed skink, is found along the coast and near ranges of NSW, and South East Queensland.
A burrowing lizard, it is usually found under rocks and logs during the day. When disturbed, it often immediately tries to burrow rapidly into any loose soil.
This insectivorous lizard is common in suburban back gardens and often is killed in mistake for being a baby snake. It produces two to four large eggs which hatch within a week or two of being laid.

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.