Bullrout

Found singly, lurking amongst weeds, or on gravel, mud, and rocky bottoms, waiting to ambush their prey, in gently flowing, freshwater streams, and brackish waters of estuaries, and shore areas.
Oceania - Australia - NSW, QLD

Waspfish can be distinguished from the Leaf Fish that belongs to the Scorpionfish family, by the Dorsal Fins that begin above or in the front of the eyes.
Most species sway back and forth to mimic debris as they wait for their victims to venture close.
Extremely venomous.