Sphyrna lewini
Identification.
The scalloped leading edge of the head gives the species its common name.
Galápagos context.
Darwin and Wolf are the verified GSD context for hammerhead schools.
Encounter context.
Schools may be encountered in current at the northern islands. Sightings are never guaranteed.
Seasonality.
Scalloped hammerheads are seen mainly from July to November. They are largely absent between March and June, and fewer are seen from December to April.