Centrophorus uyato, Rafinesque, 1810

Fernando, Daniel, Bown, Rosalind M. K., Tanna, Akshay, Gobiraj, Ramajeyam, Ralicki, Hannah, Jockusch, Elizabeth L., Ebert, David A., Jensen, Kirsten & Caira, Janine N., 2019, New insights into the identities of the elasmobranch fauna of Sri Lanka, Zootaxa 4585 (2), pp. 201-238 : 231

Centrophorus uyato

( Figs. 5E , 18 D–F)

A single specimen (SL-96) of a second species of Centrophorus was also collected at the deep-sea longline landing site in Mutur in the Eastern Province. This specimen, which has been deposited in the BRT Ichthyology Collection (BRT-I 0026), is morphologically consistent with photographs of a specimen of Centrophorus uyato from Norway presented by Wienerroither et al. (2015) in a paper synonymizing the latter species with Centrophorus zeehaani White, Ebert & Compagno from Australia. In our molecular analysis, the specimen from Sri Lanka was identical in NADH2 sequence to both a paratype of C. zeehaani (CSIRO H 6628-03; JQ519054 ) and a specimen ( JQ518946 ) referred to as C. cf. zeehaani by Naylor et al. (2012a) from Portugal that Wienerroither et al. (2015) also considered to represent C. uyato . The specimen of C. uyato from Sri Lanka grouped most closely with the cluster of specimens of Centrophorus cf. atromarginatus in the tree resulting from the Neighbor-Joining analysis, but differed from these specimens by 31–32 bp.

This is another candidate for the reports of species of Centrophorus from Sri Lanka included in our treatment of Centrophorus cf. atromarginatus .

Figures

FIGURE 5. Neighbor-Joining trees of p-distances based on 1,044 bp of aligned NADH2 sequence data for individual selachian genera or groups of genera. Taxon names are followed by country, host specimen number (in parentheses), and GenBank number. Outgroup taxa used in each analysis were omitted from the individual trees. Scale bar values indicate substitutions per site. Specimens deposited in the Blue Resources Trust Ichthyology Collection are indicted by stars (see text for details). A. Echinorhinidae. B. Hexanchidae. C. Lamniformes. D. Chiloscyllium (Hemiscylliidae). E. Centrophorus (Centrophoridae). F. Somniosidae/Oxynotidae (Somniosus omitted).

FIGURE 18. Centrophorus cf. atromarginatus (A–C) and Centrophorus uyato (D–F) (Centrophoridae). A. Lateral view of female (SL-87; BRT-I 0021). B. Ventral view of head of female (SL-87; BRT-I 0021). C. Denticles on left side below dorsal fin of female (SL-87; BRT-I 0014). D. Lateral view of female (SL-96; BRT-I 0026). E. Ventral view of head of female (SL-96; BRT-I 0026). F. Denticles on left side below dorsal fin of female (SL-96; BRT-I 0026).