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Article
Published: 2016-07-15

Rhynchorhina mauritaniensis, a new genus and species of wedgefish from the eastern central Atlantic (Elasmobranchii: Batoidea: Rhinidae)

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Hollings Marine Laboratory, 331 Fort Johnson Road, Charleston, SC 29412, USA.
Pisces Rhinidae Rhynchobatus mauritaniensis new genus and species false shark ray eastern central Atlantic

Abstract

A new wedgefish, Rhynchorhina mauritaniensis gen. et sp. nov., is described from three specimens collected in the shallow waters of the shoal “Banc d’Arguin”, off Mauritania (Eastern Central Atlantic). The new genus is mainly distinguished from its close relatives, members of the genus Rhynchobatus, by its snout shape, more broadly rounded like that of the shark-ray Rhina ancylostoma, instead of being typically wedge-shaped as in Rhynchobatus species. The new species resembles the common West African wedgefish, Rhynchobatus lubberti, in having a similar colour pattern, but differs in snout shape. The new genus is supported as genetically distinct by comparative analysis of the mitochondrial NADH2 gene.

 

References

  1. Bigelow, H.B. & Schroeder, W.C. (1953) Fishes of the western North Atlantic. Part two. Sawfishes, guitarfishes, skates and rays. Memoirs of the Sears Foundation of Marine Research, 1, 1–514.

    Bloch, M.E. & Schneider, J.G. (1801) M.E. Blochii, Systema Ichthyologiae iconibus cx illustratum. Post obitum auctoris opus inchoatum absolvit, correxit, interpolavit Jo. Gottlob Schneider, Saxo. Berolini. Sumtibus Auctoris Impressum et Bibliopolio Sanderiano Commissum. Systema Ichthyologe, 584 pp.

    Compagno, L.J.V. (1984) FAO Species Catalogue. Sharks of the World. An annotated and illustrated catalogue of shark species known to date. FAO Fisheries Synopsis No. 125, 4, part 1 (Hexanchiformes to Lamniformes), 1–250; part 2 (Carcharhiniformes), pp. 251–655.

    Compagno, L.J.V. & Randall, J.E. (1987) Rhinobatos punctifer, a new species of guitarfish (Rhinobatiformes: Rhinobatidae) from the Red Sea, with notes on the Red Sea batoid fauna. Proceedings of the California Academy of Sciences, Series 4 (44), 335–342.

    Compagno, L.J.V. (1986) Family no. 27: Rhinobatidae. In: Smith, M.M. & Heemstra, P.C. (Eds.), Smiths’ Sea Fishes. Struik Publishers, Cape Town, pp. 128–131.

    Compagno, L.J.V. & Last, P.R. (1999) Rhinidae, Wedgefishes. In: Carpenter, K.E. & Nem, V.H. (Eds.), FAO species Identification Guide for Fishery Purposes. The living marine resources of the Western Central Pacific. Volume 3. Batoid fishes, chimaeras and bony fishes part 1 (Elopidae to Linophrynidae). FAO, Rome, pp. 1418–1422.

    Compagno, L.J.V. & Last, P.R. (2008) A new species of wedgefish, Rhynchobatus palpebratus sp. nov. (Rhynchobatoide: Rhynchobatidae), from the Indo–West Pacific. In: Last, P.R., White, W.T. & Pogonoski, J.J. (Eds.), Descriptions of New Australian Chondrichthyans. CSIRO Marine and Atmospheric Research Paper, 22, 227–240.

    Compagno, L.J.V. & Last, P.R. (2010) A new species ofwedgefish, Rhynchobatus springeri (Rhynchobatoidei, Rhynchobatidae), from the Western Pacific. In: Last, P.R., White, W.T. & Pogonoski, J.J. (Eds.), Descriptions of New Sharks and Rays from Borneo. CSIRO Marine and Atmospheric Research Paper, 32, 77–88.

    Compagno, L.J.V. & Randall, J.E. (1987) Rhinobatos punctifer, a new species of guitarfish (Rhinobatiformes: Rhinobatidae)from the Red Sea, with notes on the Red Sea batoid fauna. Proceedings of the California Academy of Sciences, Series 4 (44), 335–342.

    Ehrenbaum, E. (1914) Ueber Fische von Westafrica, besonders von Kamerun. Der Fischerbote 6 (11–12), 401–409.

    Hubbs, C.L. & Ishyama, R. (1968) Methods for the taxonomic studies and description of skates (Rajdae). Copeia, 1968, 483–491.
    http://dx.doi.org/10.2307/1442016

    Last P.R., Compagno, L.J.V. & Nakaya K. (2004) Rhinobatos nudidorsalis, a new species of shovelnose ray (Batoidea: Rhinobatidae) from the Mascarene Ridge, central Indian Ocean. Ichthyological Research, 5, 153–158.
    http://dx.doi.org/10.1007/s10228-004-0211-0

    Last, P.R., Compagno, L.J.V., White, W.T. & Séret, B. (in press) Wedgefishes. In: Last, P.R. (Eds.), Rays of the World. CSIRO Publishing, Melbourne, pp. 8–19.

    Last, P.R. & Stevens, J.D. (2009) Sharks and Rays of Australia. 2nd ed. CSIRO Publishing, Melbourne, 644 pp.

    Last, P.R., Ho, H.-C. & Chen, R.R. (2013) A new species of wedgefish, Rhynchonatus immaculatus (Chondrichthyes, Rhynchobtidea), from Taiwan. Zootaxa, 3752 (1), 185–198.
    http://dx.doi.org/10.11646/zootaxa.3752.1.11

    Li, C., Hofreiter, M., Straube, N., Corrigan, S. & Naylor, G.J.P. (2103) Capturing protein-coding genes across highly divergent species. BioTechniques 54 (6), 321–326.

    McEachran, J.D., Dunn, K.A. & Miyake, T. (1996) Interrelationships of the batoid fishes (Chondrichthyes: Batodea). In: Stassny, M.L.J, Parenti, L.R. & Johnson G.D. (Eds.), Interrelatioships of Fishes. Academic Press, New York, pp. 63–84.

    Müller, J. & Henle, F.G.J. (1837) Gattungen der Haifische und Rochen nach einer von ihm mit Hrn. Henle unternommenen gemeinschaftlichen Arbeit über die Naturgeschichte der Knorpelfische. Bercht Akademe der Wssenschaften zu Berlin, 1837, 111–118.

    Müller, J. & Henle, F.G.J. (1841) Systematische Beschreibung der Plagiostomen. Berlin, pp. 103–200.
    http://dx.doi.org/10.5962/bhl.title.6906

    Naylor, G.J.P. (2016) Chondrichthyan Tree of Life. Available from: https://sharksrays.org/ (Accessed 14 Jul. 2016)

    Naylor, G.J.P., Caira, J.N., Jensen, K., Rosana, K.A.M., Straube, N. & Lakne, C. (2012) Elasmobranch phylogeny: a mitochondrial estimate based on 595 species. In: Carrier, J.C., Musick, J.A. & Heithaus, M.R. (Eds.), Biology of sharks and their relatives, Second Edition, pp. 32–56.
    http://dx.doi.org/10.1201/b11867-4

    Naylor, G.J.P., Yang, L., Corrigan, S. & de Carvalho, M.R. (in press) Phylogeny and classification of rays. In: Last, P.R. (Eds.), Rays of the World. CSIRO Publishing, Melbourne.

    Norman, J.R. (1926) A synopsis of the rays of the family Rhinobatidae, with a revision of the genus Rhinobatus. Proceedings Zoological Society London, 941–982.
    http://dx.doi.org/10.1111/j.1096-3642.1926.tb02228.x

    Randall, J.E. & Compagno, L.J.V. (1995) A review of the guitarfishes of the genus Rhinobatos (Rajiformes: Rhinobatidae) from Oman, with description of a new species. The Raffles Bulletin of Zoology, 43, 289–298.

    Séverin-Reyssac, J. & Richer de Forges, B. (1985) Particularités de la faune ichtyologique dans un milieu sursalé du parc national du Banc d’Arguin (Mauritanie). Océanographie Tropicale, 20 (1), 85–90.

    Séret, B. (2009) A new genus and species of guitarfish from West Africa. Book of abstracts of the 8th Indo-Pacific Fish Conference, Freemantle, 31st May–5th June 2009.

    Séret, B. (2016) Rhinidae. In: Carpenter, K. (Ed.), FAO species identification guide for fishery purpose. The living marine resources of the Eastern Central Atlantic. Volume 2, 1353–1357. FAO, Rome.