Dwarf stingray  (Urotrygon nana)

Taxonomy of Fishes

• Osteichthyes - Bony fishes->
• Chondrichthyes - Cartilaginous fishes->

  • Elasmobranchii - Sharks and Rays->

    • Lamniformes - Mackerel sharks->
    • Carcharhiniformes - Ground sharks->
    • Rhinopristiformes - Shovelnose rays->
    • Torpediniformes - Electric rays->
    • Rajiformes - Skates and rays->
    • Orectolobiformes - Carpet shark->
    • Squatiniformes - Angelsharks->
    • Heterodontiformes - Bullhead and horn sharks->
    • Hexanchiformes - Six-gill sharks->
    • Myliobatiformes - Stingrays->

      • Dasyatidae - Stingrays->
      • Mobulidae - Manta rays->
      • Potamotrygonidae - Southamerican freshwater stingrays->
      • Gymnuridae - Butterfly rays->
      • Myliobatidae - Eagle ray->
      • Urotrygonidae - American round stingrays->

        • Urobatis - Urobatis->
        • Urotrygon - Urotrygon->

          • Panamic stingray (Urotrygon aspidura)
          • Urotrygon caudispinosus (Urotrygon caudispinosus)
          • Blotched stingray (Urotrygon chilensis)
          • Urotrygon cimar (Urotrygon cimar)
          • Smalleyed round stingray (Urotrygon microphthalmum)
          • Munda round ray (Urotrygon munda)
          • Dwarf stingray (Urotrygon nana)
          • Peruvian stingray (Urotrygon peruanus)
          • Reticulate round ray (Urotrygon reticulata)
          • Thorny stingray (Urotrygon rogersi)
          • Stingray (Urotrygon serrula)
          • Fake round ray (Urotrygon simulatrix)
          • Venezuela round stingray (Urotrygon venezuelae)
      • Aetobatidae - Pacific eagle rays->
      • Hexatrygonidae - Sixgill stingrays->
      • Plesiobatidae - Deepwater stingrays->
      • Rhinopteridae - Cownose rays->
      • Urolophidae - Round rays->
      • Zanobatidae - Panrays->
    • Squaliformes - Sleeper and dogfish sharks->
    • Echinorhiniformes - Bramble sharks->
    • Pristiophoriformes - Saw sharks->
  • Holocephali - Chimaeras->
• Agnatha - Jawless fishes->