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New eastern Pacific Ocean records of Hydrolagus melanophasma, with annotations of a juvenile female

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Abstract:

Two new records of Hydrolagus melanophasma, one juvenile female from off the central Mexican coast and one adult male from off the coast of Ecuador, confirm the presence of this species throughout its known range in the eastern Pacific Ocean, from southern California, U.S.A., to Valdivia, Chile. This report gives a description and comparison of proportional measurements, head shape and colouration for juvenile and adult H. melanophasma. A taxonomic key to distinguish the eastern Pacific Ocean species of Hydrolagus is included.

Document Type: Research Article

DOI: http://dx.doi.org/10.1111/jfb.12012

Affiliations: 1: Instituto Nacional de Pesca, Centro Regional de Investigación Pesquera-Mazatlán, Calzada Sábalo-Cerritos s/n, AP 1177, Mazatlán, Sinaloa, México 2: Posgrado en Ciencias del Mar y Limnología, Unidad Académica Mazatlán, UNAM. Av. Joel Montes Camarena S/N. Apartado postal 811 C. P. 82040, Mazatlán, Sinaloa, México 3: Subsecretaria de Recursos Pesqueros, Ministerio de Agricultura, Ganadería, Acuacultura y Pesca, Avenida 4 entre calle 12 y 13, P. O. Box 1305183, Manta, Manabí, Ecuador 4: Department of Biology, Millersville University, P. O. Box 1002, Millersville, PA 17551, U.S.A. 5: Pacific Shark Research Center, Moss Landing Marine Laboratories, 8272 Moss Landing Road, Moss Landing, CA 95039, U.S.A.

Publication date: February 1, 2013

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