I have caught dozens of rays and always "debarb" them. One look at this and you can understand how such a thing into the chest cavity could kill someone..
Wicked looking barbs I would assume it is made of hard Cartilage? Just found out, that a group of stingrays is called a "Fever" of Rays (like a "Murder of Crows" or a "A Parliament of Owls")
Take Nothing but Pictures--Leave Nothing but Footprints.
Doug Breda