The Bulloo-Bancannia drainage basin is a drainage basin that covers part of western Queensland and New South Wales. It is adjacent to the much larger Lake Eyre basin. The basin is relatively arid and is dominated by Acacia shrublands, but is sufficiently productive to be used for sheep and cattle grazing. Rainful is extremely variable, and averages around 240 mm per annum. Despite this, the region is home to hundreds of identified species of native vertebrates. During dry years, wildlife depend on scattered waterholes. At least eight species of fish have been observed within this drainage division, all of which are also found in the Lake Eyre basin.