First record of albinism in the dwarf round stingray, <i>Urotrygon nana</i> (Urotrygonidae: Elasmobranchii), in the eastern Pacific

  • Vicente Anislado-Tolentino Dirección General de educación en Ciencia y Tecnología del Mar-SEP. CECAT 03 Irapuato, Guanajuato.
  • Marcela G. Medina-Lerma Universidad Nacional Autónoma de México (UNAM) Facultad de Estudios Superiores Iztacala Laboratorio de Zoología
  • Luis Fernando Del Moral-Flores Universidad Nacional Autónoma de México (UNAM) Facultad de Estudios Superiores Iztacala Laboratorio de Zoología
Keywords: Leucism, Batoidei, Myliobatiformes, albino stingray, abnormality


Albinism is a genetic condition in which the melanin pigment protein is either absent or nonfunctional and has occasionally been reported in chondrichthyes. Total albinism in an 18.42 g female adult dwarf stingray, Urotrygon nana, with an 81 mm disc width is described in this paper. The subject was caught using bottom trawl methods 40 m deep off Puerto Madero, Chiapas, Gulf of Tehuantepec, eastern Pacific (14° 31ʼ 6ʼʼ N - 92° 26ʼ 75ʼʼ W). The albino morphometric characteristics were compared with those of normal specimens of the same sex. This paper represents the first record of this abnormality in the family Urotrygonidae.


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Ball, R. E., Jones, C. S., Lynghammar, A., Noble, L. R. & Griffiths, A. M. (2013). The first confirmed cases of full albinism in rajid species. J. Fish Biol., 82, 1433-1440.

Bejarano-Álvarez, O. M. & Galván-Magaña, F. (2013). First report of an embryonic dusky shark (Carcharhinus obscurus) with cyclopia and other abnormalities. Mar. Biodivers. Rec., 6(e11), 1-4.

Ben-Souissi, J., Golani, D., Mérji, H., Ben-Salem, M. & Capapé, C. (2007). First confirmed record of the Halave´s Guitarfish, Rhinobatos halavi (Forsskål, 1775) (Chondrichthyes: Rhinobatidae) in the Mediterranean Sea with a description of a case of albinism in elasmobranch. Cah. Biol. Mar., 48, 67-75.

Berdeen, J. B. & Otis, D. L. (2011). An observation of a partiallly albinistic Zenaida macroura (Mourning Dove). Southeast Nat., 10(1), 185-188.

Bigman, J. S., Knuckey, J. D. S. & Ebert, D. A. (2015). Color aberrations in Chondrichthyan fishes: first record in the genus Bathyraja (Chondrichthyes: Rajiformes: Arhynchobatidae). Mar. Biodiv., 45, 1-9.

Castro-Aguirre, J. L. & Espinosa-Pérez, H. (1996). Catálogo sistemático de las rayas y especies afines de México. Listados Faunísticos de México VII. México: Instituto de Biología, UNAM.

Clark, S. (2002). First report of albinism in the white-spotted bamboo shark, Chiloscyllium plagiosum (Orectolobiformes: Hemiscyllidae), with a review of reported color aberrations in elasmobranchs. Zoo. Biol., 21, 519-524.

Cohen, J. L. (1973). An albino grey smoothhound Mustelus californicus, Gill. Calif. Fish Game, 59, 210-211.

De Jesús-Roldan, M. (1990). An albino bat ray, Myliobatis californica, from the Pacific coast of Baja California Sur, Mexico. Calif. Fish Game, 76(2), 126-127.

Dulvy, N. K., Metcalfe, J. D., Glanville, J., Pawson, M. G. & Reynolds, J. D. (2000). Fishery stability, local extinctions and shifts in community structure in skates. Conserv. Biol., 14, 283-293.

Ebert, D. A. (1985). Color variation in the sevengill shark, Notorynchus maculatus Ayres along the California Coast. Calif. Fish Game, 71, 53-59.

Ellis, J. R., Dulvy, N. K., Jennings, S., Parker-Humphreys, M. & Rogers, S. I. (2005). Assessing the status of demersal elasmobranchs in UK waters: a review. J. Mar. Biol. Assoc. U. K., 85, 1025-1047.

Eschmeyer, W. N. & Fong, J. D. (2016). Species by family/subfamily. Recuperado en mayo 21, 2016, disponible en

Escobar-Sánchez, O., Moreno-Sánchez, X. G., Aguilar-Cruz, C. A. & Abitia-Cárdenas, L. A. (2014). First case of synophthalmia and albinism in the Pacific angel shark Squatina californica. J. Fish Biol., 85, 494-501.

Follett, W. I. (1976). First record of albinism in the leopard shark (Triakis semifasciata Girard). Calif. Fish Game, 62(2), 163-164.

Gracian-Negrete, J. M. & Del Moral-Flores, L. F. (2013). Anomalías en algunas especies del género Achirus (Pleuronectiformes: Achiridae). Rev. Zool., 24, 9-15.

Haaker, P. L. (1977). Abnormal vertebral development in northern anchovy, Engraulis mordax Girard. Calif. Fish Game, 63, 182-185.

Herald, E. S. (1953). The 1952 shark derbies at Elkhorn Slough, Monterey Bay, California. Calif. Fish Game, 39, 237-243.

Herald, E. S., Schneebeli, W., Green, N. & Innes, K. (1960). Catch records for seventeen shark derbies held at Elkhorn Slough, Monterey Bay. Calif. Fish Game, 46, 59-67.

Hoisington, G. & Lowe, C. G. (2005). Abundance and distribution of the round stingray, Urobatis halleri, near a heated effluent outfall. Mar. Environ. Res., 60, 437-453. http://dx.doi:10.1016/j.marenvres.2005.01.003

Mejía-Falla, P. A., Navia, A. F. & Muñoz, L. A. (2011). First record of morphological abnormality in embryos of Urotrygon rogersi (Jordan & Starks, 1895) (Myliobatiformes: Urotrygonidae) in the Tropical Eastern Pacific. Lat. Am. J. Aquat. Res., 39(1), 184-188.

Miyake, T. & McEachran, J. D. (1988). Three new species of the stingray genus Urotrygon (Myliobatiformes: Urolophidae) from the eastern Pacific. Bull. Mar. Sci., 42(3), 366-375.

Montes-Domínguez, H. (2001). Sistemática de las especies del género Urotrygon (Myliobatoidei: Urolophidae). Tesis de Maestría en Ciencias, Universidad Nacional Autónoma de México.

Nava-Nava, P. (2013). Biología reproductiva de la raya enana, Urotrygon nana Miyake y McEachran, 1988, en las costas de Sinaloa, México. Tesis de Maestría en Ciencias, Universidad Nacional Autónoma de México.

Nelson, J. S., Grande, T. C. & Wilson, M. V. H. (2016). Fishes of the World. Edmonton, Canada: Wiley & Sons.

Ochoa-Díaz, M. R., Rodríguez-Romero, J., López-Martínez, J. & Maldonado-García, M. C. (2016). First record of spine malformation of the round stingray Urobatis halleri off the Western Coast of Baja California Sur, Mexico. Mar. Biodivers. Rec., 9, 70. http://dx.doi. 10.1186/s41200-016-0074-x

Reum, J. C. P., Paulsen, C. E., Pietsch, T. W. & Parker-Stetter, S. L. (2008). First record of an albino chimaeriform fish, Hydrolagus colliei. Northwest. Nat., 89(1), 60-62.[60:FROAAC]2.0.CO;2

Sancho-Vázquez, F., Del Moral-Flores, L. F. & Mendoza-Vargas, O. U. (2015). Albinismo parcial en un embrión de tiburón puntas negras, Carcharhinus limbatus (Carcharhinidae: Chondrichthyes) del Pacífico oriental. Lat. Am. J. Aquat. Res., 43(1), 274-276.

Sandoval-Castillo, J., Mariano-Meléndez, E. & Villavicencio-Garayzar, C. (2006). New records of albinism in two elasmobranchs: the tiger shark Galeocerdo cuvier and the giant electric ray Narcine entemedor. Cybium, 30(2), 191-192.

Talent, L. G. (1973). Albinism in embryo gray smoothhound shark, Mustelus californicus, from Elkhorn Slough, Monterey Bay, California. Copeia, 1973, 595-597.

Torres-Huerta, A. M., Meraz, J., Carrasco-Bautista, P. E. & Díaz-Carballido, P. L. (2016). Morphological abnormalities of round rays of the genus Urotrygon in the Gulf of Tehuantepec. Mar. Biodiv., 46(1), 309-315.

Wakida-Kusunoki, A. T. (2015). First record of total albinism in southern stingray Dasyatis americana. Rev. Biol. Mar. Ocean., 50(1), 135-139.

Walker, P. A. & Heessen, H. J. L. (1996). Long-term changes in ray populations in the North Sea. ICES J. Mar. Sci., 1085-1093.

How to Cite
Anislado-Tolentino, V., Medina-Lerma, M., & Del Moral-Flores, L. (2016). First record of albinism in the dwarf round stingray, <i>Urotrygon nana</i&gt; (Urotrygonidae: Elasmobranchii), in the eastern Pacific. Journal of Marine and Coastal Sciences, 8(2), 93-100.

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