When blue-spotted stingrays are born, they hatch out of egg cases and are pale gray or brown and are spotted with black or rusty red and white. These patterns and markings are distinct to each individual within a litter. As adults, they are olive-gray or gray-brown to yellow dorsally and white ventrally with numerous blue spots. When born, the young stingrays are about nine cm long and can grow to around 25cm as adults. The young are born out of egg cases with a soft tail that is encases in a thin layer of skin to prevent injury to the mother during birth. The skin is eventually lost and the tail is used as a protective mechanism.