Northern Lampreys -
Family Petromyzontidae

• Entosphenus lethophagus Hubbs 1971 Pit-Klamath Brook Lamprey
• Entosphenus macrostomus Beamish 1982 Vancouver Lamprey THREATENED (Canada, Cowichan Lake pop. only)
• Entosphenus minimus Bond & Kan 1973 Miller Lake Lamprey
• Entosphenus similis Vladykov & Kott 1979 Klamath Lamprey
• Entosphenus tridentatus Gairdner 1836 Pacific Lamprey THREATENED (Mexico)
• Entosphenus cf. tridentatus Goose Lake Lamprey
• Ichthyomyzon bdellium Jordan 1885 Ohio Lamprey
• Ichthyomyzon castaneus Girard 1858 Chestnut Lamprey PROPOSED SPECIAL CONCERN (Canada)
• Ichthyomyzon fossor Reighard & Cummins 1916 Northern Brook Lamprey PROPOSED SPECIAL CONCERN (Canada)
• Ichthyomyzon gagei Hubbs & Trautman 1937 Southern Brook Lamprey
• Ichthyomyzon greeleyi Hubbs & Trautman 1937 Mountain Brook Lamprey
• Ichthyomyzon unicuspis Hubbs & Trautman 1937 Silver Lamprey
• Lampetra aepyptera Abbott 1860 Least Brook Lamprey
• Lampetra ayresii Günther 1870 Western River Lamprey
• Lampetra hubbsi Vladykov & Kott 1976 Kern Brook Lamprey
• Lampetra pacifica Vladykov 1973 Pacific Brook Lamprey
• Lampetra richardsoni Vladykov & Follett 1965 Western Brook Lamprey ENDANGERED (Canada, parasitic Morrison Creek pop. only)
• Lethenteron alaskense Vladykov & Kott 1978 Alaskan Brook Lamprey
• Lethenteron appendix DeKay 1842 American Brook Lamprey
• Lethenteron camtschaticum Tilesius 1811 Arctic Lamprey
• Petromyzon marinus Linnaeus 1758 Sea Lamprey
• Tetrapleurodon geminis Álvarez 1964 Jacona Lamprey ENDANGERED (Mexico)
• Tetrapleurodon spadiceus Bean 1887 Chapala Lamprey ENDANGERED (Mexico)