Eudontomyzon Regan [C. T.] 1911:200 Masc. Eudontomyzon danfordi Regan 1911. Type by monotypy. •Synonym of Lampetra Gray 1851, but a valid subgenus Eudontomyzon -- (Bailey 1980:1627 [ref. 5253]). •Valid as Eudontomyzon Regan 1911 -- (Vladykov & Follett 1967:1074 [ref. 38841], Hubbs & Potter 1971:44 [ref. 13397], Holčík 1986:143 [ref. 24819], Reshetnikov 1998:16 [ref. 23570], Gill et al. 2003:694 [ref. 27254], Bogutskaya & Naseka 2004:19 [ref. 28183], Kottelat & Freyhof 2007:37 [ref. 29996], Kottelat & Freyhof 2009:76 [ref. 30320], Naseka et al. 2009:16 [ref. 30402], Lang et al. 2009:51 [ref. 31599], Renaud & Economidis 2010:37 [ref. 30894], Renaud 2011:38 [ref. 31770], Parin et al. 2014:14 [ref. 33547]). Current status: Valid as Eudontomyzon Regan 1911. Petromyzontidae.