hucho, Salmo Linnaeus [C.] 1758:309 [Systema Naturae, Ed. X v. 1; ref. 2787] Bavaria and Austria. No types known. •Valid as Hucho hucho (Linnaeus 1758) -- (Berg 1948:292 [ref. 12882], Hensel & Holčík 1983:68 [ref. 36467], Lelek 1987:118 [ref. 22962], Stearley & Smith 1993:20 [ref. 26683], Holčík 1995 [ref. 22133], Kottelat 1997:124 [ref. 22952], Fuller et al. 1999:485 [ref. 25838], Hanel 2003:58 [ref. 27894], Bogutskaya & Naseka 2004:151 [ref. 28183], Vassilev & Pehlivanov 2005:164 [ref. 28369], Hanel & Lusk 2005:316 [ref. 28804], Kottelat & Freyhof 2007:396 [ref. 29996], Simonović et al. 2007:368 [ref. 33985], Ćaleta et al. 2015:32 [ref. 34877], Ćaleta et al. 2019:176 [ref. 37026], Nagy et al. 2023:357 [ref. 40348]). Current status: Valid as Hucho hucho (Linnaeus 1758). Salmonidae: Salmoninae. Distribution: Europe: Danube River basin. Habitat: freshwater.