WHITE'S SKINK Egernia whitii (Lacepede, 1804)
Possibly more than one species is involved here. The White's Skink averages 30 cm and is found throughout the coast and ranges of South East Australia, including most of Tasmania.
The colour and patterning of this lizard is highly variable, with unmarked and marked specimens occurring within a single population.
Although found in most types of habitats, this lizard prefers rocky areas, where it is usually found under rocks or foraging around rock outcrops. Sometimes two or three specimens of different ages will occupy a single rock with burrows running underneath it, to which they will retreat when disturbed.
This diurnal lizard is mainly insectivorous, and produces 3-5 live young in summer, measuring 7 cm.

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.