Australis short-necked male turtle carapace is long and narrow, the center of the plastron is slightly inward, the tail is thick and long, the base of the tail is thick, and the cloaca is spaced The posterior edge of the plastron is far away, and the notch formed by the two anal shields of the plastron is deeper and the angle of the notch is small.

Australian short-necked turtle female tortoise back The carapace is short and wide, the plastron is flat with no depression in the center, the tail is thin and short, the base of the tail is thin, the cloaca is closer to the rear edge of the plastron, the notch formed by the two anal shields of the plastron is shallow, and the angle of the notch is large .