danfordi, Eudontomyzon Regan [C. T.] 1911:200 [Annals and Magazine of Natural History (Series 8) v. 7 (no. 38); ref. 3640] Transylvania and Sebés River, Romania. Syntypes: (6) BMNH 1876.11.25.1 (1), 1951.5.22.1-5 [ex 1874.7.4.5] (5). Additional material: BMNH 1951.5.22.6-12 (7 or 6); ?BMNH (1) Sebés R. •Valid as Lampetra danfordi (Regan 1911) -- (Berg 1948:32 [ref. 12882]). •Valid as Eudontomyzon danfordi Regan 1911 -- (Renaud & Holčík 1986:146 [ref. 24821], Lelek 1987:29 [ref. 22962], Kottelat 1997:25 [ref. 22952], Yamazaki & Goto 2000:8 [ref. 24514], Vassilev & Pehlivanov 2005:161 [ref. 28369], Kottelat & Freyhof 2007:37 [ref. 29996], Naseka et al. 2009:17 [ref. 30402], Lang et al. 2009:48 [ref. 31599], Renaud 2011:38 [ref. 31770], Hanel & Andreska 2016:146 [ref. 34755], Pereira et al. 2021:[10] 1991 [ref. 40490], Nagy et al. 2023:356 [ref. 40348]). Current status: Valid as Eudontomyzon danfordi Regan 1911. Petromyzontidae. Distribution: Southeastern Europe: Danube River basin. Habitat: freshwater.