Two teenagers swimming in an ocean inlet were bitten by sharks as they swam off New Smyrna Beach. Danielle Shidemantle, 19, of Lake Mary, was bitten by a 3-foot-long shark in her upper left thigh, Volusia County Deputy Beach Chief Joe Wooden said. A little more than two hours later, Amber Benningfield, 13, from Bowling Green, Ky., was bitten in her left calf. The attacks were within a few yards of each other. Shidemantle was treated and released, but Benningfield was hospitalized in stable condition. The sharks were probably black tip or spinner sharks, Wooden said.