KEFERSTEINS' FROG Uperoleia laevigata Keferstein, 1867
A small 2.5 cm frog from coastal and near coastal NSW, little is known about this species. A number of similar frogs from the genus Uperoileia are found in most parts of Australia, (laevigata species complex), and all may eventually be re-classified, and split into more new species.
Differentiating between one species in this group and another is exceedingly difficult. These frogs are usually found in the vicinity of man made dams, semi permanent swamps and so forth. They breed in spring and summer. The call is a short harsh 'ahk'.
Eggs are usually laid at the bottom of shallow water singly and in small clumps.

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.