dentex, Petromyzon Anikin [V. P.] 1905:17 [Izvestiya Tomskogo Universiteta v. 27; ref. 15920] Mouth of Jenissei River at village Goltschicha, Siberia, Russia. Syntypes: (2). •Synonym of Lampetra japonica (Martens 1868), but questionably the same as L. kessleri (Anikin 1905) -- (Berg 1948:40 [ref. 12882]). •Synonym of Lethenteron kessleri (Anikin 1905) -- (Holčík 1986:221 [ref. 24819], Reshetnikov 1998:18 [ref. 23570]). •Synonym of Lethenteron reissneri (Dybowsky 1869) -- (Parin et al. 2014:15 [ref. 33547]). •Synonym of Lethenteron camtschaticum (Tilesius 1811) -- (Naseka & Renaud 2020:47 [ref. 37921]). Current status: Synonym of Lethenteron camtschaticum (Tilesius 1811). Petromyzontidae. Habitat: freshwater, brackish, marine.