• Agnathomyzon caspicus Gratzianov, 1907 accepted as Caspiomyzon wagneri (Kessler, 1870)
• Agnathomyzon wagneri (Kessler, 1870) accepted as Caspiomyzon wagneri (Kessler, 1870)
• Ammocoetes aepyptera Abbott, 1860 accepted as Lampetra aepyptera (Abbott, 1860)
• Ammocoetes aureus Bean, 1881 accepted as Lethenteron camtschaticum (Tilesius, 1811)
• Ammocoetes bicolor Lesueur, 1818 accepted as Petromyzon marinus Linnaeus, 1758
• Ammocoetes borealis Agassiz, 1850 accepted as Ichthyomyzon fossor Reighard & Cummins, 1916
• Ammocoetes caeruleus Philippi, 1858 accepted as Geotria australis Gray, 1851
• Ammocoetes cibarius Girard, 1858 accepted as Lampetra ayresii (Günther, 1870) accepted as Occidentis ayresii (Günther, 1870)
• Ammocoetes coeruleus Philippi, 1858 accepted as Ammocoetes caeruleus Philippi, 1858 accepted as Geotria australis Gray, 1851
• Ammocoetes communis Gistel, 1848 accepted as Lampetra fluviatilis (Linnaeus, 1758)
• Ammocoetes concolor Kirtland, 1840 accepted as Ichthyomyzon unicuspis Hubbs & Trautman, 1937
• Ammocoetes landbecki Philippi, 1858 accepted as Geotria australis Gray, 1851
• Ammocoetes unicolor DeKay, 1842 accepted as Ichthyomyzon fossor Reighard & Cummins, 1916
• Ammocoetus caeruleus Philippi, 1858 accepted as Geotria australis Gray, 1851
• Batymyzon bairdii (Gill, 1883) accepted as Petromyzon marinus Linnaeus, 1758
• Ichthyomyzon bdellium (Jordan, 1885)
• Ichthyomyzon castaneus Girard, 1858
• Ichthyomyzon fossor Reighard & Cummins, 1916
• Ichthyomyzon gagei Hubbs & Trautman, 1937
• Ichthyomyzon greeleyi Hubbs & Trautman, 1937
• Ichthyomyzon hirudo Girard, 1858 accepted as Ichthyomyzon castaneus Girard, 1858
• Ichthyomyzon hubbsi Raney, 1952 accepted as Ichthyomyzon greeleyi Hubbs & Trautman, 1937
• Ichthyomyzon unicuspis Hubbs & Trautman, 1937
• Petromyzon acutidens Philippi, 1865 accepted as Mordacia lapicida (Gray, 1851)
• Petromyzon adriaticus Nardo, 1847 accepted as Petromyzon marinus Linnaeus, 1758
• Petromyzon americanus Lesueur, 1818 accepted as Petromyzon marinus Linnaeus, 1758
• Petromyzon anomalum De la Pylaie, 1835 accepted as Lampetra planeri (Bloch, 1784)
• Petromyzon anwandteri Philippi, 1863 accepted as Mordacia lapicida (Gray, 1851)
• Petromyzon appendix DeKay, 1842 accepted as Lethenteron appendix (DeKay, 1842)
• Petromyzon argenteus Bloch, 1795 accepted as Lampetra fluviatilis (Linnaeus, 1758)
• Petromyzon argenteus Kirtland, 1838 accepted as Ichthyomyzon bdellium (Jordan, 1885)
• Petromyzon argenteus Nardo, 1847 accepted as Lampetra fluviatilis (Linnaeus, 1758)
• Petromyzon astori Girard, 1858 accepted as Entosphenus tridentatus (Richardson, 1836)
• Petromyzon ayresii Günther, 1870 accepted as Lampetra ayresii (Günther, 1870) accepted as Occidentis ayresii (Günther, 1870)
• Petromyzon bairdii Gill, 1883 accepted as Petromyzon marinus Linnaeus, 1758
• Petromyzon bdellium Jordan, 1885 accepted as Ichthyomyzon bdellium (Jordan, 1885)
• Petromyzon bicolor Shaw, 1804 accepted as Lampetra planeri (Bloch, 1784)
• Petromyzon borealis Girard, 1858 accepted as Lethenteron camtschaticum (Tilesius, 1811)
• Petromyzon branchialis Linnaeus, 1758 accepted as Lampetra fluviatilis (Linnaeus, 1758)
• Petromyzon caecus Couch, 1832 accepted as Lampetra planeri (Bloch, 1784)
• Petromyzon ciliatus Ayres, 1855 accepted as Entosphenus tridentatus (Richardson, 1836)
• Petromyzon cirrhatus Forster, 1801 accepted as Eptatretus cirrhatus (Forster, 1801)
• Petromyzon concolor (Kirtland, 1840) accepted as Ammocoetes concolor Kirtland, 1840 accepted as Ichthyomyzon unicuspis Hubbs & Trautman, 1937
• Petromyzon danfordi (Regan, 1911) accepted as Eudontomyzon danfordi Regan, 1911
• Petromyzon dentex Anikin, 1905 accepted as Lethenteron camtschaticum (Tilesius, 1811)
• Petromyzon epihexodon (Gill, 1862) accepted as Entosphenus tridentatus (Richardson, 1836)
• Petromyzon ernstii Dybowski, 1872 accepted as Lethenteron camtschaticum (Tilesius, 1811)
• Petromyzon fluvialis Linnaeus, 1758 accepted as Lethenteron camtschaticum (Tilesius, 1811)
• Petromyzon fluviatilis Linnaeus, 1758 accepted as Lampetra fluviatilis (Linnaeus, 1758)
• Petromyzon fluviatilis f. major Smitt, 1895 accepted as Lampetra fluviatilis (Linnaeus, 1758)
• Petromyzon fluviatilis larvalis Smitt, 1895 accepted as Lampetra planeri (Bloch, 1784)
• Petromyzon fluviatilis major Smitt, 1895 accepted as Lampetra fluviatilis (Linnaeus, 1758)
• Petromyzon fluviatilis minor Smitt, 1895 accepted as Lampetra planeri (Bloch, 1784)
• Petromyzon fonki Philippi, 1865 accepted as Geotria australis Gray, 1851
• Petromyzon japonicus Martens, 1868 accepted as Lethenteron camtschaticum (Tilesius, 1811)
• Petromyzon jurae MacCulloch, 1819 accepted as Lampetra fluviatilis (Linnaeus, 1758)
• Petromyzon kameraticus Dybowski, 1869 accepted as Lethenteron camtschaticum (Tilesius, 1811)
• Petromyzon kessleri Anikin, 1905 accepted as Lethenteron kessleri (Anikin, 1905)
• Petromyzon lamottenii Lesueur, 1827 accepted as Lethenteron appendix (DeKay, 1842)
• Petromyzon lampetra Pallas, 1814 accepted as Petromyzon marinus Linnaeus, 1758
• Petromyzon lividus Girard, 1858 accepted as Entosphenus tridentatus (Richardson, 1836)
• Petromyzon lumbricalis Pallas, 1814 accepted as Lethenteron camtschaticum (Tilesius, 1811)
• Petromyzon macrops Blainville, 1825 accepted as Lampetra fluviatilis (Linnaeus, 1758)
• Petromyzon macrostomus Burmeister, 1868 accepted as Geotria macrostoma (Burmeister, 1868)
• Petromyzon maculosus Gronow, 1854 accepted as Petromyzon marinus Linnaeus, 1758
• Petromyzon marinus Linnaeus, 1758
• Petromyzon marinus camtschaticus Tilesius, 1811 accepted as Lethenteron camtschaticum (Tilesius, 1811)
• Petromyzon marinus dorsatus Wilder, 1883 accepted as Petromyzon marinus Linnaeus, 1758
• Petromyzon marinus unicolor Gage, 1928 accepted as Petromyzon marinus Linnaeus, 1758
• Petromyzon maximus Linnaeus, 1758 accepted as Petromyzon marinus Linnaeus, 1758
• Petromyzon mordax Richardson, 1846 accepted as Mordacia mordax (Richardson, 1846)
• Petromyzon niger Lacepède, 1802 accepted as Lampetra planeri (Bloch, 1784)
• Petromyzon nigricans Lesueur, 1818 accepted as Petromyzon marinus Linnaeus, 1758
• Petromyzon nigrum Rafinesque, 1820 accepted as Ichthyomyzon bdellium (Jordan, 1885)
• Petromyzon omalii Beneden, 1857 accepted as Lampetra fluviatilis (Linnaeus, 1758)
• Petromyzon onki Philippi, 1865 accepted as Geotria australis Gray, 1851
• Petromyzon planeri Bloch, 1784 accepted as Lampetra planeri (Bloch, 1784)
• Petromyzon plumbeus Ayres, 1855 accepted as Lampetra ayresii (Günther, 1870) accepted as Occidentis ayresii (Günther, 1870)
• Petromyzon plumbeus Shaw, 1804 accepted as Lampetra planeri (Bloch, 1784)
• Petromyzon ponticus Yashchenko, 1896 accepted as Eudontomyzon mariae (Berg, 1931)
• Petromyzon pricka Lacepède, 1798 accepted as Lampetra fluviatilis (Linnaeus, 1758)
• Petromyzon reissneri Dybowski, 1869 accepted as Lethenteron reissneri (Dybowski, 1869)
• Petromyzon ruber Lacepède, 1800 accepted as Petromyzon marinus Linnaeus, 1758
• Petromyzon sanguisuga Lacepède, 1800 accepted as Lampetra fluviatilis (Linnaeus, 1758)
• Petromyzon septoeuil Lacepède, 1802 accepted as Lampetra planeri (Bloch, 1784)
• Petromyzon tridentatus Richardson, 1836 accepted as Entosphenus tridentatus (Richardson, 1836)
• Petromyzon wagneri Kessler, 1870 accepted as Caspiomyzon wagneri (Kessler, 1870)