vladykovi, Eudontomyzon danfordi Oliva [O.] & Zanandrea [G.] 1959:1 [Doriana, Genova v. 2 (no. 98); ref. 18496] Affluent of Orava Reservoir, Danube River basin, Territory of Orava, northwestern Slovakia, Czechoslovakia. Neotype: SNMB Ry 472 = LF 41858. Non-types: NMW 50013 (1), 50020 (1), 76823 (4). Type catalog: Blahák 1991:203 [ref. 20023]. Also appeared in Zanandrea 1960 [ref. 11963]; see nomenclatural notes in Kottelat 1997:26 [ref. 22952]. For authorship and date of publication see Holčík 1963:51 et seq. [ref. 20741]. Neotype designated by Holčík 1963:57 [ref. 20741], but a neotype is not needed if other syntypes or the specimen from Graz, Austria, that was the basis for the oral disk drawing in Oliva & Zanandrea 1959, are available. •Valid as Lampetra (Eudontomyzon) vladykovi (Oliva & Zanandrea 1959) -- (Balon & Holčik 1964:191 [ref. 41156]). •Synonym of Eudontomyzon danfordi Regan 1911 (in part) -- (Renaud & Holčík 1986:147 [ref. 24821]). •Synonym of Eudontomyzon mariae (Berg 1931) -- (Holčík & Renaud 1986:165 [ref. 24822], Naseka et al. 2009:17 [ref. 30402], Renaud 2011:40 [ref. 31770] with queston). •Valid as Eudontomyzon vladykovi Oliva & Zanandrea 1959 -- (Kottelat 1997:26 [ref. 22952], Kottelat & Freyhof 2007:39 [ref. 29996], Lang et al. 2009:48 [ref. 31599], Ćaleta et al. 2015:21 [ref. 34877], Hanel & Andreska 2016:14 [ref. 34755], Ćaleta et al. 2019:142 [ref. 37026], Tutman et al. 2020:1 [ref. 37301], Pereira et al. 2021:[10] 1991 [ref. 40490], Nagy et al. 2023:356 [ref. 40348]). Current status: Valid as Eudontomyzon vladykovi Oliva & Zanandrea 1959. Petromyzontidae. Distribution: Southeastern Europe: Danube River basin. Habitat: freshwater.