Un fotóforo es un órgano que emite luz que se puede observar como puntos luminosos en varios animales marinos, incluidos peces y cefalópodos. El órgano puede ser simple, o tan complejo como el ojo humano; equipado con lentes, Obturadores, filtros de color y reflectores. La luz puede ser producida por componentes durante la digestión de la presa, de células mitocondriales especializadas llamadas fotocitos (células que producen luz), o asociado con bacterias simbióticas en organismos de cultivo. El carácter de los fotóforos es importante en la identificación de peces bentónicos Los fotóforos en los peces son usados principalmente para atraer a la presa o confundir a los depredadores.

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A photophore is a light-emitting organ which appears as luminous spots on various marine animals, including fish and cephalopods. The organ can be simple, or as complex as the human eye; equipped with lenses, shutters, color filters and reflectors. The light can be produced from compounds during the digestion of prey, from specialized mitochondrial cells in the organism, called photocytes ("light producing" cells), or, similarly, associated with symbiotic bacteria in the organism that is cultured. The character of photophores is important in the identification of deep sea fishes. Photophores on fish are used mainly for attracting food or confusing predators. Photophores are found on some cephalopods, including Watasenia scintillans, the sparkling enope or firefly squid, which can create impressive light displays. \n* Arrangement of various photophores on the squid Lycoteuthis lorigera \n* Photophores on a lanternfish, which worldwide is the most common deep sea fish \n* This anglerfish has a dorsal fin whose first ray has become very long and is tipped with a luminous photophore fishing lure

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