Information from FAO Species Identification Guide Western Central Atlantic
Bluntnose stingray - Dasyatis say
Diagnostic characters: Dorsal surface greyish brown, olivaceous brown to reddish, occasionally with bluish spots; ventral surface whitish. Both upper and lower fin-folds well developed, even in late term embryos.
Size: Maximum 100 cm disc width; neonates 15 to 16 cm at birth.
Habitat, biology, and fisheries: Benthic along the shoreline to 9m; also occurs in estuaries. Recorded from New Jersey to Florida Keys, northern and western Gulf of Mexico, Greater and Lesser Antilles, and eastern Venezuela to northern Argentina. It has not been recorded from the southern Gulf of Mexico or the Caribbean coasts of Mexico and Central America. Records of Dasyatis pastinaca from Uruguay and Argentina probably refer to this species or Dasyatis americana. Food consists of polychaetes, bivalves, gastropods, and ray-finned fishes. Litters range from 2 to 4 young.