After some discussion, the 24-inch shark was identified as a spinner shark. ALSO READ: No survivors after plane collides with Army helicopter, crashes into Potomac near DCA What made that ...

Mark Summerset, 38, was surfing near New Smyrna Beach when he jumped off his board and was bitten by what authorities believed to be a spinner shark, according to The Daytona Beach News-Journal.

The shark appeared to be either a juvenile spinner shark or blacktip shark, two species that are normally spotted further South. The two species of sharks can be very difficult to tell apart ...