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Field Key to Sharks of North Carolina and Adjacent Waters

Florida Program for Shark Research


Scalloped hammerhead (Sphyrna lewini)
Biological Profile


scalloped hammerhead
Scalloped hammerhead
(Sphyrna lewini)
illustration ©FAO courtesy Species Identification and Biodata



Distinguishing Characteristics
1. Head broadly arched and hammer-shaped and marked by a prominent indentation at midline ("scalloped")

2. Pelvic fins with straight rear margins



scalloped hammerhead
Scalloped hammerhead
(Sphyrna lewini)
Specimen
© George Burgess


scalloped hammerhead
Scalloped hammerhead
(Sphyrna lewini)
Underwater
© Doug Perrine


hammerheads
Photos to aid in the identification of the different hammerhead species in the Atlantic Ocean:
A. Smooth Hammerhead, B. Scalloped Hammerhead, C. Great Hammerhead, D. Bonnethead
© George Burgess