Sphyrna zygaena (Linnaeus, 1758)

Smooth Hammerhead

Squalus zygaena Linnaeus, 1758: 234 . Syntype: NRM LP 88 (see Fernholm & Wheeler, 1983). Type locality: Mediterranean Sea and Atlantic (incl. Spain, France, Italy, Greece, Syria).

Local synonymy: Sphyrna zygaena — Filewood, 1973: 2 (may occur in PNG); White et al., 2018: 190, figs (PNG). PNG voucher material: None.

Remarks: Mainly recorded from temperate regions but also found in some tropical regions. Confirmed from coastal fisheries catches in Milne Bay Province; molecular data supports the identification (S. Appleyard, unpubl. data).