The stingrays bear thorns, but are better characterized by their caudal stinging spine. The teeth are small and arranged in numerous files.
Females have a crushing, and males often a clutching, dentition.
Depending on species, the number of dental files vary but not to the extent seen in the skates. It bears thorns on the back and tail. The upper teeth are about 1.8 mm in width in the anterior positions, enlarge to 2.8 mm laterally, then drop back to 2.0 mm distally. The lower files generally graduate mesio-distally from 2.2 to 1.2 mm, although files three through seven are slightly enlarged. The upper teeth are all high cusped and most are about 2.0 mm in width, although the last few distal files are less wide.