Lake Angurrkburna, Groote Eylandt, NT
Arawana (Osteoglossum bicirrhosum)
Arowana occasionally seen in pond in the evening.
Osteoglossiformes (Gk. "bony tongues") is a relatively primitive order of ray-finned fish that contains two sub-orders, the Osteoglossoidei and the Notopteroidei. All of the living species inhabit freshwater. They are found in South America, Africa, Australia and southern Asia, having first evolved in Gondwana before that continent broke up.