Australian lungfish, officially discovered in the late 1800s. The Australian Lungfish is a long, heavy bodied freshwater fish with five pairs of gills and fins which resemble flippers. They are called lungfish from their ability to breath air via a ung? Adult lungfish can grow to more than 1.5 metres and weight up to 40 kilograms. The Australian Lungfish is the sole Australian survivor of a family of fishes that have been around since the dinosaurs. Fossil remains of this species have been found in New South Wales dating from more than 100 million years ago. Habitat restricted to south-eastern Queensland. 固opFoto / Fortean