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| Common names: louvar (English), emperador (Espanol) |
Luvarus imperialis Rafinesque, 1810
Body elongate, oval, compressed body that tapers 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; pelvics tiny; pectoral long, pointed; tail large, semicircular, with 1 large and 2 small keels on tail base; skin rough, covered with tiny spines; juvenile dorsal and anal higher, with longer bases, pelvics very long.
Metallic blue to grey above, sides and belly silvery with pink reflections, indistinct dark spots on upper 2/3 body; anal and tail red, pectorals red to yellowish; dorsal red at front black at rear; juveniles with dense large dark spots on body and dorsal and anal fins.
Size: 200 cm.
Habitat: Oceanic; surface to midwater.
Depth: 0-500 m.
Circumglobal, tropical to temperate; throughout our region except the Gulf of California.