Was watching the Outdoor channel this past weekend and a fishing show was on- I think it was Trev Gowdy's Monster Fish. Who ever was fishing for payara in Brazil, but also showed a few shots of rays. One was a black ray swimming near the surface. THe other showed a man from a local tribe shooting a ray in shallow water with a bow and arrow. Couldn't tell what species it was but it was dark brown with faint spots. They ate the ray for lunch.