Sphyrna zygaena Linnaeus 1758 (hammerhead shark)
Chondrichthyes - Selachii - Carchariidae
Alternative combination: Squalus zygaena
Full reference: C. Linnaeus. 1758. Systema Naturae per Regna Tria Naturae, secundum Classes, Ordines, Genera, Species, cum Characteribus, Differentiis, Synonymis, Locis. Tomus I. Laurentii Salvii, Holmiae (Stockholm) 1-823
Belongs to Sphyrna according to D. J. Cicimurri and J. L. Knight 2009
Sister taxa: Sphyrna americana, Sphyrna denticulata, Sphyrna gilmorei, Sphyrna laevissima, Sphyrna lata, Sphyrna lewini, Sphyrna magna, Sphyrna media, Sphyrna prisca
Type specimen: 1
Ecology: nektonic carnivore