Stingrays - Potqmotrygon Description: A round disc consisting of very enlarged and flattened pectoral fins, with a narrow whiplike tail. The body is mottled and covered with denticles. It is the only family of freshwater chondrichtyeans (sharks and rays). Species: 3 genera, 20 species Range: Neotropical freshwaters. Habitat: Rivers and streams Spawning Habitats: Chondricthyes are ovoviviparous (live bearers) with two to seven young typically produced. Feeding Habits: Feed on crustaceans along the bottom Age and Growth: 10 to 40 inches in disc-width as adults Potential Concerns: Human health issues. The stinger can provide a very painful injury if the fish is stepped on. These fish are novelties in the aquarium industry. All members of the family Potamotrygonidae are restricted. Back to Nonnative Restricted Fish | 
