Also known as Centreboard Leatherjacket, Fan-bellied Leatherjacket, Fanbelly Filefish, Fanbelly Leatherjacket, Fantail Filefish, Fantail Leatherjacket, Fan-tailed Filefish, Fan-tailed Leatherjacket, Leatherjacket.
Found singly over silty, mud and weedy bottoms of trawling grounds, estuaries, coastal and off-shore reefs.
They feed algae, ascidians, invertebrates and seagrasses.
Length - 38cm
Depth - 3-50m
Filefish can alter their colour and pattern to match their surrounds and so deter predators.
Although closely related to the Triggerfish, their "trigger spine" cannot be locked into place. Ref: https://www.fishbase.se/summary/Monacanthus-chinensis