Northern brook lamprey  (Ichthyomyzon fossor)

Taxonomy of Fishes

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

  • Myxini - Hagfishes->
  • Petromyzonti - Lampreys->

    • Petromyzontiformes - Lampreys->

      • Petromyzontidae - Lampreys->

        • Eudontomyzon - Eudontomyzon->
        • Lampetra - Lampetra->
        • Petromyzon - Petromyzon->
        • Caspiomyzon - Caspiomyzon->
        • Entosphenus - Entosphenus->
        • Ichthyomyzon - Ichthyomyzon->

          • Ohio lamprey (Ichthyomyzon bdellium)
          • Chestnut lamprey (Ichthyomyzon castaneus)
          • Northern brook lamprey (Ichthyomyzon fossor)
          • Southern brook lamprey (Ichthyomyzon gagei)
          • Mountain brook lamprey (Ichthyomyzon greeleyi)
          • Silver lamprey (Ichthyomyzon unicuspis)
        • Lethenteron - Lethenteron->
        • Tetrapleurodon - Tetrapleurodon->
      • Geotriidae - Southern lampreys->
      • Mordaciidae - Southern topeyed lampreys->