Whitefish or white fish is a fisheries term referring to several species of demersal fish with fins, particularly cod (Gadus morhua), Caspian kutum (Rutilus kutum), whiting (Merluccius bilinearis), and haddock (Melanogrammus aeglefinus), but also hake (Urophycis), pollock (Pollachius), or others. Whitefish (Coregonidae) is also the name of several species of Atlantic freshwater fish, so the use of the two-word term 'white fish' is less misleading.