Lethenteron is a genus of lamprey in the family Petromyzontidae.

Species

There are currently 9 recognized species in this genus:

  • Lethenteron alaskense Vladykov & Kott, 1978 (Alaskan brook lamprey)
  • Lethenteron appendix (DeKay, 1842) (American brook lamprey)
  • Lethenteron camtschaticum (Tilesius, 1811) (Arctic lamprey)
  • Lethenteron hattai Iwata, Sakai & Goto, 2024 (Southern Japanese brook lamprey)
  • Lethenteron kessleri (Anikin, 1905) (Siberian brook lamprey)
  • Lethenteron mitsukurii (Hatta, 1901) (Northern Japanese brook lamprey)
  • Lethenteron ninae Naseka, Tuniyev & Renaud, 2009 (Western Transcaucasian lamprey)
  • Lethenteron reissneri (Dybowski, 1869) (Far Eastern brook lamprey)
  • Lethenteron satoi Sakai, Iwata & Watanabe, 2024 (Fan-tailed brook lamprey)