ECHINORHINIDAE (PRICKLY 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 : 428

publication ID	https://doi.org/10.1111/zoj.12309
persistent identifier	https://treatment.plazi.org/id/03F387F7-FF99-8F14-3A7F-F8D2FCEDF8C0
treatment provided by	Marcus (2021-08-29 06:05:57, last updated by Plazi 2023-11-05 13:14:55)
scientific name	ECHINORHINIDAE (PRICKLY SHARKS)
status

Treatment

ECHINORHINIDAE (PRICKLY SHARKS) View in CoL View at ENA

Five specimens initially identified as Echinorhinus brucus formed a single cluster ( Fig. 2 View Figure 2 ). When com- pared with Echinorhinus brucus and Echinorhinus cookei specimens (the only recognized species in this family) reported by Naylor et al. (2012), the five Oman specimens formed a separate cluster ( Fig. 6 View Figure 6 ). Given their distinct separation, genetic distances were calculated between the Oman specimens and the Echinorhinus spp. reported by Naylor et al. (2012). The mean distance between the current specimens and E. brucus was 5.04 ± 0.70% while it was 5.23 ± 0.76% between the current specimens and E. cookei . By comparison, the mean distance between E. brucus and E. cookei was 6.07 ± 0.81%. Consequently, the Oman specimens have been labelled Echinorhinus sp.

References

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.

Figures

Figure 2. Neighbour-joining tree for an 829-bp fragment of the NADH2 gene from 1487 elasmobranch specimens from south-eastern Arabia. Values in parentheses indicate sample size (n) and within-group mean genetic distance (D). Bootstrap values are based on 1000 replications and only values ≥ 95% are shown.

Figure 6. Neighbour-joining tree for an 829-bp fragment of the NADH2 gene for Echinorhinus sp. from the present study together with Echinorhinus brucus and Echinorhinus cookei (Naylor et al., 2012). Bootstrap values are based on 1000 replications and only values ≥ 95% are shown.