2021•Société Française d'IchtyologieOpen access

New records of albinism in two elasmobranchs: the tiger shark Galeocerdo cuvier and the giant electric ray Narcine entemedor

Jonathan Sandoval‐Castillo, Everardo Mariano-Meléndez, Carlos Villavicencio-Garayzar

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Abstract

A completely albino embryo of the tiger shark (Galeocerdo cuvier) was found in the uterus of a female captured off the Revillagigedo Islands (Pacific Ocean, Mexico). The albino embryo was a male measuring 62 cm in total length. A partially albino giant electric ray (Narcine entemedor) was caught in Almejas Bay (Baja California Sur, Mexico). The specimen was a mature female measuring 69 cm in total length. This is the first reported case of albinism in N. entemedor and the second in G. cuvier.

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What this paper is about

A completely albino embryo of the tiger shark (Galeocerdo cuvier) was found in the uterus of a female captured off the Revillagigedo Islands (Pacific Ocean, Mexico). The albino embryo was a male measuring 62 cm in total length. A partially albino giant electric ray (Narcine entemedor) was caught in Almejas Bay (Baja California Sur, Mexico). The specimen was a mature female measuring 69 cm in total length. This is the first reported case of albinism in N. entemedor and the second in G. cuvier.

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Available abstract

A completely albino embryo of the tiger shark (Galeocerdo cuvier) was found in the uterus of a female captured off the Revillagigedo Islands (Pacific Ocean, Mexico). The albino embryo was a male measuring 62 cm in total length. A partially albino giant electric ray (Narcine entemedor) was caught in Almejas Bay (Baja California Sur, Mexico). The specimen was a mature female measuring 69 cm in total length. This is the first reported case of albinism in N. entemedor and the second in G. cuvier.

Key concepts: Albinism, Fishery, Biology, Geography, Paleontology

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New records of albinism in two elasmobranchs: the tiger shark Galeocerdo cuvier and the giant electric ray Narcine entemedor — Research Paper | ScholarLens