GREAT HAMMERHEAD

Sphyrna mokarran

SIZE

To about 18.5 ft (5.6 m).

DISTINGUISHING CHARACTERISTICS

DISTRIBUTION

MA to Brazil, including Gulf of Mexico and Caribbean Sea. Common off Carolinas in summer. Rare north of NC.

HABITAT

Coastal and offshore; near surface to >250 ft (76 m).

SIMILAR SPECIES

Bonnethead has shovel-shaped head; growns to about 5 ft (1.5 m). Smooth Hammerhead and Scalloped Hammerhead have swept-back "hammers," smaller first dorsal fins, pelvic fins with straight rear margins. Smooth Hammerhead lacks central indentation in "hammer."

MORE INFORMATION

Guide to Sharks, Tunas, & Billfishes of the U.S. Atlantic and Gulf of Mexico.
Text descriptions taken from Guide to Sharks, Tunas, & Billfishes of the U.S. Atlantic and Gulf of Mexico

Ichthyology at the Florida Museum of Natural History

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(File Modified Sep. 13 2011)