Western river lamprey  (Lampetra ayresii)

Taxonomy of Fishes

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

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

    • Petromyzontiformes - Lampreys->

      • Petromyzontidae - Lampreys->

        • Eudontomyzon - Eudontomyzon->
        • Lampetra - Lampetra->

          • Brook lamprey (Lampetra planeri)
          • European river lamprey (Lampetra fluviatilis)
          • Least brook lamprey (Lampetra aepyptera)
          • Lampetra alavariensis (Lampetra alavariensis)
          • Lampetra auremensis (Lampetra auremensis)
          • Western river lamprey (Lampetra ayresii)
          • Kern brook lamprey (Lampetra hubbsi)
          • Turkish brook lamprey (Lampetra lanceolata)
          • Lampetra lusitanica (Lampetra lusitanica)
          • Pacific brook lamprey (Lampetra pacifica)
          • Western brook lamprey (Lampetra richardsoni)
          • Lampetra soljani (Lampetra soljani)
          • Po brook lamprey (Lampetra zanandreai)
        • Petromyzon - Petromyzon->
        • Caspiomyzon - Caspiomyzon->
        • Entosphenus - Entosphenus->
        • Ichthyomyzon - Ichthyomyzon->
        • Lethenteron - Lethenteron->
        • Tetrapleurodon - Tetrapleurodon->
      • Geotriidae - Southern lampreys->
      • Mordaciidae - Southern topeyed lampreys->