Also known as Devil Flathead, Large-scaled Spiny Flathead, Midget Flathead.
Found singly during the day, buried in the substrate over mud and sand bottoms of fringing coral reefs as well as much deeper waters where they are taken by trawling.
They feed nocturnally on crustaceans and small fish.
Length - 13cm
Depth - 5-250m
Widespread Western Pacific
Flatheads are closely related to Scorpionfish.
Their eyes are covered by a tasselled curtain which helps to disguise them from predators. The tassels expand and contract with intensity of light. Ref: https://www.fishbase.se/summary/Onigocia-spinosa.html