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Thresher Shark

Alopias vulpinus

Appearance

Illustration of a thresher shark showing important characteristics
  • Huge caudal fin upper lobe, nearly equal to length of body
  • White patches extending from abdomen above pectoral fin bases
  • No interdorsal ridge

Similar Species: Bigeye thresher shark, A. superciliosus (has larger eyes and V-groove on top of head)

Size: Up to 20 feet 

Habitat

Coastal and offshore waters; juveniles found more inshore 

Behavior

Long caudal fin is used to herd and stun schools of fish, which make up most of its diet

Additional Information

Recreational Regulations