HALF GIRDLED SNAKE Simoselaps semifasciatus (Gunther, 1863)
Found throughout the western half of Australia and NorthEast Queensland, there may be more than one species covered under this name. This snake is variable in colour, two variants are pictured here. Average length is about 35 cm.
The scalation is smooth with 15-17 mid body rows, 140-190 ventrals, divided anal, and 14-30 divided subcaudals.
This inoffensive snake is usually found when crossing roads at night. If caught during the day, it is usually found under ground litter such as logs, well-embedded rocks, etc.
The Half-girdled snake occurs in all types of habitat, but is most common in drier areas.
According to Rick Shine, who has done studies of preserved museum specimens, it appears that the diet of this snake consists almost exclusively of reptile eggs.
This species is itself an egg layer, although its' biology is little known.

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.