Species: Luvarus imperialis, the Louvar

Luvarus imperialis Rafinesque, 1810

Louvar

Body elongate, oval, compressed, tapering to slender tail base; head deep, compressed, forehead profile convex; eyes low, behind small horizontal mouth; 1 continuous dorsal fin, long, low, origin at ~ mid-body; anal fin similar to and under dorsal fin; dorsal and anal fins of adults without spines (dorsal with II spines in juvenile); pelvic fins tiny; pectoral fin long, pointed; tail fin large, semicircular, with 1 large and 2 small keels on tail base; skin rough, covered with tiny spines; juvenile with dorsal and anal fins higher and with longer bases, pelvic fins very long in very small fish.