rostratus, Cyprinus Tilesius [W. G. von] 1813:454, Pl. 15 (figs. 1a-b). [Mémoires de l'Académie Impériale des Sciences de Saint Pétersbourg v. 4 (for 1811); ref. 13413] Kolyma, Indigirka, and Yana rivers, northeastern Siberia, Russia. No types known. Type catalog: Gilbert 1998:198 [ref. 23395]. Described in account of Cyprinus labeo in Pallas 1814:308 [ref. 3351]. Availability not clear, although account referred to in index. •Synonym of Catostomus catostomus (Forster 1773), but a valid subspecies -- (Berg 1949:478 [ref. 20661], Chereshnev 1996:601 [ref. 24659], Naseka 1998:93 [ref. 23590], Pervozvansky 1999:567 [ref. 24877], Chereshnev et al. 2001:39 [ref. 26736] dated 1814, Scharpf 2006:5 [ref. 30386]). •Synonym of Catostomus catostomus (Forster 1773) -- (Scott & Crossman 1998:532 [ref. 24570], Parin et al. 2014:98 [ref. 33547]). •Synonym of Catostomus catostomus (Forster 1773), subspecies catostomus -- (Gilbert 1998:198 [ref. 23395]). •Valid as Catostomus rostratus (Tilesius 1813) -- (Dyldin et al. 2020:112 [ref. 37569], Dyldin et al. 2023:[2] [ref. 40328]). Current status: Valid as Catostomus rostratus (Tilesius 1813). Catostomidae: Catostominae. Distribution: North Asia: Arctic Ocean basin in the Indigirka, Alazeya, Kolyma and Yana drainages (Russia). Habitat: freshwater.