To about 18 ft (5.5 m).
Newfoundland, Canada, to Cuba, including Gulf of Mexico. Common in U.S. Northeast.
Coastal and offshore from surface to 1,000 ft (305 m); juveniles farther inshore.
Bigeye thresher has large eyes directed upward, deep grooves on top of head, white abdominal coloring that does not extend above pectoral fins.
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Text descriptions taken from Guide to Sharks, Tunas, & Billfishes of the U.S. Atlantic and Gulf of Mexico |
Thresher shark length-weight relationship
Capt. Tom's Guide to New England Sharks
Canadian Shark Research Laboratory
Ichthyology at the Florida Museum of Natural History
