roulei, Leuciscus leuciscus Bertin [L.] & Estève [R.] 1948:63 [Catalogue des types de poissons du Muséum National d'Histoire Naturelle 4e partie; ref. 19574] Uh River, Slovakia and Ukraine. Lectotype: MNHN 1930-0206. Paralectotypes: NMP (1) plus others. Type catalog: Mlíkovský et al. 2011:153 [ref. 33498]. Appeared first as Leuciscus leuciscus natio roulei in Vladykov 1931:311, fig. 18 -- not available, infrasubspecific. Made available and dates to Bertin & Estève as above who treated Vladykov's natio as a subspecies. Lectotype selected by Kottelat 1997:69 [ref. 22952]. •Synonym of Leuciscus leuciscus (Linnaeus 1758) -- (Kottelat 1997:69 [ref. 22952]). Current status: Synonym of Leuciscus leuciscus (Linnaeus 1758). Leuciscidae: Leuciscinae. Habitat: freshwater, brackish.