Download our Educational Materials/Fact Sheets scalloped_hammer

Scalloped hammerhead

(Sphyrna lewini)

hammerhead

Scalloped hammerhead (Sphyrna lewini).

Their common length is 360cm, they are grey, with a white tonality below, and the pectoral fins have grey or black spots on the ventral side. They are viviparous and feed on teleost fish and cephalopods, also lobsters, shrimps, crabs, and even other sharks and rays. They are circumglobal in coastal warm waters and tropical seas. They are found in Western Atlantic (from New Jersey to Uruguay), including the Gulf of Mexico and the Caribbean; in the Eastern Atlantic (from western Mediterranean to Namibia); in the Indo-Pacific (Red Sea, East Africa and throughout the Indian Ocean, from Japan to New Caledonia, Hawaii and Tahiti); and in Eastern Pacific (southern California, from USA to Ecuador, and probably in Peru).

The IUCN Red List classified the scalloped hammerhead (Sphyrna lewini) as an endangered species. To learn more, see: http://www.iucnredlist.org/details/39385/0