In fact, they inhabit the waterways of Australia and southern New Guinea and possess the longest neck of any group of turtles in the world. Because the neck is so long that it cannot be retracted completely beneath the margin of the shell. There are six species of turtles belonging to the genera Chelodina and Macrochelodina in family Chelidae,
All aquatic turtles are great swimmers
The common snake-necked turtle (Chelodina longicollis) is found from Queensland to South Australia.
Chelodina species, C. longicollis