CUNNINGHAM'S SKINK Egernia cunninghami (Gray, 1832)
Possibly more than one species is involved here. This lizard attains 40 cm in length and is found in hilly areas of South Eastern Australia. It is distinguished by the modified scales on it's body which form large spines.
The colour varies with locality ranging from plain greys and browns to various combinations of black, red, white, brown, etc, usually in flecks.
Coastal NSW, and Northern specimens appear to be slightly smaller than others.
This species is usually found around large rock outcrops throughout its' range where it shelters in rock crevices, or under large slabs of rock. When threatened it puffs up its' body wedging itself within the rock crevice with it's spines making it almost impossible to dislodge.
The Cunningham's Skink is mainly vegetarian in the wild, although it eats large numbers of beetles around December and January.
It is often found in small colonies and family groups ranging from two to ten individuals.
Four to six live young are born between February and May. These take about six years to mature.
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.