The Murray cod (Maccullochella peelii) is a large australian predatory freshwater fish of the maccullochella  genus and the percichthyidae family. Although the species is called a cod it is not related to the northern hemisphere marine cod species. The Murray cod is an important and charismatic part of Australia's  wildlife and is found in the murray darling river system in Australia. The Murray cod is the largest freshwater fish in Australia, and one of the largest in the world. Other common names for Murray cod....  read more