First record of leucism in spotted eagle ray, Aetobatus narinari (Elasmobranchii, Myliobatiformes, Aetobatidae)

This paper reports the first record of leucism in the spotted eagle ray, Aetobatus narinari (Euphrasen, 1790). The specimen was captured on the coast of Seybaplaya, Campeche, on 15 August 2025, using a 20 cm mesh-size gillnet. The disc length and disc width of the leucistic specimen were 376 mm and 656 mm, respectively, and the gutted weight was 3.895 kg. This report contributes to the current knowledge of chromatic abnormalities in elasmobranchs in the southern Gulf of Mexico, which now includes four species. The cause of leucism in this ray remains unknown. Further studies and monitoring are important to identify possible causes of this abnormality, taking into account the health of the specimens and their environmental interactions.