SPHYRNIDAE (HAMMERHEAD SHARKS)

Henderson, Aaron C., Reeve, Alan J., Jabado, Rima W. & Naylor, Gavin J. P., 2016, Taxonomic assessment of sharks, rays and guitarfishes (Chondrichthyes: Elasmobranchii) from south-eastern Arabia, using the NADH dehydrogenase subunit 2 (NADH 2) gene, Zoological Journal of the Linnean Society 176 (2), pp. 399-442 : 431

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https://doi.org/10.1111/zoj.12309

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scientific name

SPHYRNIDAE (HAMMERHEAD SHARKS)
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SPHYRNIDAE (HAMMERHEAD SHARKS)

Three Sphyrna species were examined during the present study, namely S. lewini , S. zygaena and S. mokarran , and each formed a separate cluster with a mean between-group distance of 15.10 ± 0.12%. Naylor et al. (2012) reported two main clusters within S. lewini , designated S. lewini 1 (Atlantic and Indian Ocean specimens) and S. lewini 2 (Pacific specimens). Specimens of S. lewini from the present study clustered with S. lewini 1, within which they grouped most closely with other Indo-Pacific specimens. Similarly, Naylor et al. (2012) found two main clusters within S. mokarran , representing Atlantic ( S. mokarran 1) and Pacific ( S. mokarran 2) specimens. The two S. mokarran speci- mens from the present study clustered with S. mokarran 1. Lastly, only one cluster was reported for S. zygaena by Naylor et al. (2012), and the addition of the current specimens did not alter this arrangement.

Naylor GJP, Caira JN, Jensen K, Rosana KAM, White WT, Last PR. 2012. A DNA sequence-based approach to the identification of shark and ray species and its implications for global elasmobranch diversity and parasitology. Bulletin of the American Museum of Natural History 367: 1 - 262.