Hemipristis elongata (Klunzinger)

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 : 224-225

Hemipristis elongata (Klunzinger)

( Figs. 4D , 15 A–D)

One specimen (SL-78) of Hemipristis elongata was collected from the deep-sea longline fishery in Mutur, Trincomalee Harbor in the Eastern Province. That specimen was morphologically consistent with H. elongata . It clustered most closely with our reference specimen (KA-22; JQ519069 ) of this species collected from Indonesian, Borneo in the tree resulting from the Neighbor-Joining analysis, and differed from the latter specimen by only a single bp. This specimen has been deposited in the BRT Ichthyology Collection (BRT-I 0018).

This is the name currently applied to this species in Sri Lanka (e.g., De Silva 1984 –1985, 2006, 2015; De Bruin et al. 1995; Morón et al. 1998; Joseph 1999).

Figures

FIGURE 4. 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. Carcharhinus and close relatives (Carcharhinidae). B. Rhizoprionodon (Carcharhinidae). C. Galeocerdidae. D. Hemigaleidae. E. Pseudotriakidae. F. Sphyrnidae. G. Iago (Triakidae).

FIGURE 15. Hemipristis elongata (Hemigaleidae) (A–D) and Planonasus indicus (Pseudotriakidae) (E–H). A. Lateral view of immature male (SL-78; BRT-I 0018). B. Falcate pectoral fins of immature male (ventral view; SL-78; BRT-I 0018). C. Ventral view of head of immature male (SL-78). D. Teeth of upper jaw of immature male (SL-78; BRT-I 0018). E. Lateral view of mature female (SL-107; BRT-I 0029). F. Ventral view of head of mature female (SL-107; BRT-I 0029). G. Teeth of upper and lower jaw of mature female (SL-107; BRT-I 0029). H. Denticles on left side below dorsal fin of mature female (SL- 107; BRT-I 0029).