EASTERN SHORT-NECKED TORTOISE Emydura signata Ahl, 1932
A small 20cm tortoise this tortoise is similar in most respects to the Macquarie Tortoise Emydura macquarii. This tortoise is found in rivers of the north coast of NSW and the South Queensland coast. It is possible that more than one species of tortoise is being grouped here. Recent attempts at reclassifying the Eastern Short Necked Tortoise Emydura signata, have focussed on different eye characteristics and colour, as well as shell morphology, etc. It seems that almost every major river system in this area has it's own distinctive form of Emydura signata.
These tortoises are spring breeders, but their 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.