55cm, released
Not sure of ID. Doesn't seem to appear in my reference material (Tropical Marine Fishes of Australia, Shaw et al). Closest ID I thought might be Ulan mentalis but the fishes in the images lack the same dorsal and anal fins and have a black spot at base of pectoral fins. @ralfmagee?
Southern Grubfish resting on sand at Fitzroy Island, Great Barrier Reef, Australia