Isurus paucus Guitart

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 : 229

Isurus paucus Guitart

( Fig. 5C )

One small specimen (SL-110) of Isurus paucus was examined at the Valaichchenai Fisheries Harbor landing site in the Eastern Province. It is morphologically fully consistent with I. paucus . It differs from the reference specimen (KJ616742.1) of this species from Taiwan included in our analysis by 1 bp.

This name is in current use for this species in Sri Lanka (e.g., De Silva 1984 –1985, 2006, 2015; Morón et al. 1998; Joseph 1999).

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).