Scalloped Hammerhead Shark
Scalloped Hammerhead Shark
Sphyrna lewini
Protected Status
ESA Endangered
Eastern Pacific DPS
ESA Endangered - Foreign
Eastern Atlantic DPS
ESA Threatened
Central & Southwest Atlantic DPS,
Indo-West Pacific DPS
Quick Facts
Weight
Up to 335 pounds
Lifespan
15 to 30 years
Length
5 to 11 feet
Threats
Overfishing,
Bycatch
Location
Pacific Islands,
Southeast,
West Coast
About the Species
Scalloped hammerhead sharks are moderately large sharks with a global distribution. The most distinguishing characteristic of this shark is it's "hammer-shaped" head. They are threatened by commercial fishing, mainly for the shark fin trade. Two distinct population segments of the scalloped hammerhead shark are listed as endangered and 2 are listed as threatened under the Endangered Species Act.
NOAA Fisheries is committed to conserving and protecting scalloped hammerhead sharks. Our scientists and partners use a variety of innovative techniques to study, learn more about, and protect this species.
Learn more about scalloped hammerhead sharks
ESA Endangered
- Eastern Pacific DPS
ESA Endangered - Foreign
- Eastern Atlantic DPS
ESA Threatened
- Central & Southwest Atlantic DPS
- Indo-West Pacific DPS
Scientific Classification
| Kingdom | Animalia | Phylum | Chordata | Class | Chondrichthyes | Order | Carcharhiniformes | Family | Sphyrnidae | Genus | Sphyrna | Species | lewini |
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