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Family Sphyrnidae, HAMMERHEAD SHARKS

Bonnethead Shark | Scalloped Hammerhead


Bonnethead Shark (Sphyrna tiburo)
Description: broadly widened head in the shape of a shovel; only slight indentation of anal fin; front of head not notched at mid-line; gray or grayish-brown in color.

Similar fish:  other hammerhead sharks.

bonnetheadshark.jpg (3966 bytes)
Where found:  INSHORE species found in bays and estuaries.

Size: common to 3 to 4 feet.

Remarks:  matures at about 3 feet in length and bears 6 to 12 young at one time.  Feeds chiefly on crabs and other crustaceans.

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Scalloped Hammerhead (Sphyrna lewini)
Description:  fifth gill slit shorter than 4 preceding ones and located posterior to pectoral fin base; flattened head extending to hammer-like lobes on each side; distinct indentation of the front margin of the head at its midpoint; second dorsal fin longer than tail; gray-brown to olive in color with white underbelly; teeth smooth-edged; pectoral fins tipped with black on the undersurface; tips of first and second dorsal lobes and caudal also may have dusky tips; pelvic fin with nearly straight hind margin.

Similar fish: other hammerhead sharks.

scallopedhammerheadshark.jpg (4013 bytes)
Where found:  both OFFSHORE and INSHORE.

Size:   common to 6 feet and can reach 14 feet.

Remarks:  predatory fish, feeding mainly on fish, squid, and stingrays; male matures at about 6 feet in length.

Florida record 991 lbs.

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