roughtail stingray swimming in shallow water

animal aquatic atlantic batoidea biodiversity bottomdwelling cartilaginous colorful coral costal dasyati dasyatidae ecology endangered eukaryotic evolution exoskeleton filter filtering finned fins fish gill gillbearing invertebrate living marine mediterranean migration multicellular ocean polyps ray reef roughtail salt sea shallow spines squamate stingray swim tail tentacles vertebrate viviparous water