The brill, Scophthalmus rhombus, is a species of flatfish in the turbot family (Scophthalmidae) of the order Pleuronectiformes. Brill can be found in the northeast Atlantic, Black Sea, Baltic Sea, and Mediterranean, primarily in deeper offshore waters. Brill are usually in shallow waters or below 100 meters at seafloor. Brill prefers to live on the surface that is either sandy or muddy depending on where they are.