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Euryphorus suarezi n. sp. (Copepoda: Caligidae) parasitic on an elasmobranch from the Gulf of Mexico

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Abstract

Currently, the caligid genus Euryphorus Milne Edwards, 1840 contains two valid species. A new species, Euryphorus suarezi, is described based on adult females and males collected from the spotted eagle ray Aetobatus narinari (Euphrasen) (Elasmobranchii: Myliobatidae), captured off Campeche and Tabasco, Mexico (southern coast of the Gulf of Mexico). The new species is mainly distinguished from its congeners by the absence of dorsal plates, the presence of postantennal process, bifurcated maxillule, maxilliped with slender corpus, and leg 4 with 3-segmented endopod. Leg 6 is conspicuous in the male. Additional differences are described. This is the first record of a species of Euryphorus from an elasmobranch host, which may provide insight into the evolutionary relationships within the Caligidae.

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Acknowledgements

We are grateful to Hiley Valeria Montijo Hernández for her help with drawings. Gratitude is also due to two anonymous reviewers for their valuable comments on a previous version of the manuscript.

Funding

FNM-S and MAR-S are supported by the program Cátedras CONACyT from the National Council for Science and Technology of Mexico.

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Authors and Affiliations

  1. Catedrático CONACYT, Centro de Investigación en Alimentación y Desarrollo, A.C., Unidad Mazatlán en Acuicultura y Manejo Ambiental, Av. Sábalo Cerritos s/n, 82100, Mazatlán, Sinaloa, Mexico

    Francisco Neptalí Morales-Serna

  2. Catedrática CONACYT, Universidad Autónoma del Carmen, Facultad de Ciencias Naturales, Centro de Investigación de Ciencias Ambientales, Av. Laguna de Términos s/n Col. Renovación 2da Sección, C.P. 24155, Ciudad del Carmen, Campeche, Mexico

    María Amparo Rodríguez-Santiago

  3. Universidad Nacional Autónoma de México, Instituto de Ciencias del Mar y Limnología, Unidad Académica, Mazatlán, Sinaloa, Mexico

    Samuel Gómez

Authors
  1. Francisco Neptalí Morales-Serna
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  2. María Amparo Rodríguez-Santiago
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  3. Samuel Gómez
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Corresponding author

Correspondence to Francisco Neptalí Morales-Serna.

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The authors declare that they have no conflict of interest.

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All applicable institutional, national and international guidelines for the care and use of animals were followed.

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Morales-Serna, F.N., Rodríguez-Santiago, M.A. & Gómez, S. Euryphorus suarezi n. sp. (Copepoda: Caligidae) parasitic on an elasmobranch from the Gulf of Mexico. Syst Parasitol 93, 91–99 (2016). https://doi.org/10.1007/s11230-015-9608-6

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  • DOI: https://doi.org/10.1007/s11230-015-9608-6

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