luvar (or louvar) a remarkable and beautiful fish, the only species in its family, Luvaridae. A cosmopolitan species of tropical and subtropical waters, and a loner, it is rarely seen in any fish market, although making an occasional appearance in those of the W. Mediterranean and California, usually because it has been taken incidentally in the course of fishing for tuna or has stranded itself on a beach. Its diet is unusual, consisting largely of jellyfish. The beauty of its coloration—a pale pink body, blue above, with scarlet fins—attracts immediate attention; and a fully grown adult may be as much as 1.75 m (70") in length and 140 kg (310 lb) in weight. The flesh is reputedly excellent and not unlike that of tuna.