Sphyrna mokarran (Rüppell, 1837)

Great Hammerhead

Zygaena mokarran Rüppell, 1837: 66, pl. 17 (fig. 3). Lectotype: SMF 3590 (stuffed); lectotype designation by Klausewitz (1960). Type locality: Massawa, Eritrea, Red Sea .

Local synonymy: Sphyrna tudes— Filewood, 1973: 2 (PNG). Sphyrna mokarran— Kailola, 1987: 21 (western Papua; Hall Sound; Port Moresby; Bootless Bay; Salamaua); White et al., 2018: 188, figs (PNG).

PNG voucher material: (2 spec.) KFRS E.176 (dried jaws), Tatana, Fairfax Harbour, Port Moresby, 7 Oct. 1965; KFRS E.259 (dried jaws), Kanudi Bay, Port Moresby, 4 Aug. 1966.

Remarks: First recorded from PNG by Filewood (1973) as S. tudes (= mokarran). Recorded from prawn trawl fishery bycatch and from coastal fisheries catches during recent surveys, but in low numbers.