Sperm whale Physeter macrocephalus Linnaeus, 1758

Suborder: Odontoceti Family: Physeteridae

Sightings in Madeira

All year but mostly from March to September

ID characteristics

Very long, dark grey body with wrinkled skin and a low, triangular or rounded hump instead of dorsal fin. Squarish head with single slit-like blowhole on left side near the forehead.

Broad triangular flukes.