Girella cyanea, also known as the blue drummer or Australian bluefish, is a species of sea chub native to inshore waters, around 6 metres (20 ft) depth, from Australia to New Zealand and the Kermadec Islands.

[3] Sea chubs are easily recognized by distinct morphological characteristics such as their ovate-shaped bodies, small mouths, and weakly-forked strong caudal fin.

[4] Girella cyanea are commonly found in the south-west Pacific Ocean; occurring along the east coast of Australia from Flinders Reef off Cape Moreton in Queensland to Eden in southern New South Wales.

Adults can typically be found in coastal and offshore rocky reef areas in New South Wales at depths ranging from 5–30 metres (16–98 ft).

[5] Girella cyanea are omnivorous; they are known to eat crustaceans, smaller fishes, mollusks; along with calcareous seaweeds, brittle stars, cunjevoi, and marine worms.