Sphyrna

Sphyrna is a genus of hammerhead sharks in the family Sphyrnidae. It currently consists of the following species:
 * Sphyrna corona S. Springer, 1940 (Scalloped bonnethead)
 * Sphyrna couardi Cadenat, 1951 (Whitefin Hammerhead)
 * Sphyrna lewini (E. Griffith & C. H. Smith, 1834) (Scalloped hammerhead)
 * Sphyrna media S. Springer, 1940 (Scoophead)
 * Sphyrna mokarran (Rüppell, 1837) (Great hammerhead)
 * Sphyrna tiburo (Linnaeus, 1758) (Bonnethead)
 * Sphyrna tudes (Valenciennes, 1822) (Smalleye hammerhead)
 * Sphyrna zygaena (Linnaeus, 1758) (Smooth hammerhead)