willkommii, Chondrostoma Steindachner [F.] 1866:79 [Anzeiger der Kaiserlichen Akademie der Wissenschaften, Mathematisch-Naturwissenschaftlichen Classe v. 3; ref. 21716] Spain and Portugal (several localities). Syntypes: (several) NMW 52664-66 (2, 2, 2), 52668-98 (31 lots, 56 spec.), 52699 (8), 52700-702 (6, 8, 5), 52704-07 (3, 6, 1, 1). Species first described in the above abstract; mentioned as a name in passing in Steindachner 1866:14 [p. 9 of separate] [ref. 18776], later illustrated and described in more detail in Steindachner 1866:266 [p. 6 of separate], Pl. 2 [ref. 18777]. Also in Steindachner 1866:8, 9 [ref. 18757]. •Synonym of Chondrostoma polylepis Steindachner 1864, but a valid subspecies -- (Elvira 1987:122 [ref. 6743], Elvira 1991:149 [ref. 20036]). •Valid as Chondrostoma willkommii Steindachner 1866 -- (Coelho 1985 [ref. 8973], Kottelat 1997:56 [ref. 22952], Doadrio & Carmona 2003:30 [ref. 28132], Coelho et al. 2005:202 [ref. 28430], Gante et al. 2010:968 [ref. 35176]). •Valid as Chondrostoma willkommi Steindachner 1866 -- (Çiftci et al. 2020:214 [ref. 37725]). •Valid as Pseudochondrostoma willkommii (Steindachner 1866) -- (Robalo et al. 2007:371 [ref. 28878], Doadrio & Elvira 2007:296 [ref. 29510], Kottelat & Freyhof 2007:234 [ref. 29996], Perea et al. 2010:15 [ref. 31802]). Current status: Valid as Pseudochondrostoma willkommii (Steindachner 1866). Leuciscidae: Leuciscinae. Distribution: Southwestern Europe: Iberian Peninsula (Portugal, Spain). Habitat: freshwater.