ray - cartilaginous fishes having horizontally flattened bodies and enlarged winglike pectoral fins with gills on the underside; most swim by moving the pectoral fins

family Mobulidae, Mobulidae - large rays lacking venomous spines: mantas

Atlantic manta, Manta birostris - largest manta (to 22 feet across wings); found worldwide but common in Gulf of Mexico and along southern coasts of United States; primarily oceanic

devil ray, Mobula hypostoma - small manta (to 4 feet) that travels in schools