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First report of an embryonic dusky shark (Carcharhinus obscurus) with cyclopia and other abnormalities

Published online by Cambridge University Press:  13 February 2013

Olga Marcela Bejarano-Álvarez  and
Felipe Galván-Magaña
Olga Marcela Bejarano-Álvarez
Affiliation:
Centro Interdisciplinario de Ciencias Marinas (CICIMAR-IPN), Avenida IPN s/n Col. Playa Palo de Santa Rita, La Paz, B.C.S. C.P. 23096, México
Felipe Galván-Magaña*
Affiliation:
Centro Interdisciplinario de Ciencias Marinas (CICIMAR-IPN), Avenida IPN s/n Col. Playa Palo de Santa Rita, La Paz, B.C.S. C.P. 23096, México
*
Correspondence should be addressed to: F. Galván-Magaña, Centro Interdisciplinario de Ciencias Marinas (CICIMAR-IPN), Avenida IPN s/n Col. Playa Palo de Santa Rita, La Paz, B.C.S. C.P. 23096, México email: galvan.felipe@gmail.com
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Abstract

We report the first record of an elasmobranch (shark) with cyclopia and other abnormalities (albinism, absence of nostrils, a bump on the snout and a slight abnormality in the vertebral column). These malformations were found in an embryonic dusky shark Carcharhinus obscurus caught near Cerralvo Island in the Gulf of California, Mexico. Tomographic images were taken to observe these deformities in detail. The causes of these deformities are uncertain but may be attributed to congenital malformation during embryonic development (holoprosencephaly).

Keywords

deformitiesholoprosencephalyalbinismelasmobranchsdusky sharkMexico

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Type
Research Article
Information
Marine Biodiversity Records , Volume 6 , 2013 , e11
Copyright
Copyright © Marine Biological Association of the United Kingdom 2013

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References

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