poljakowi, Coregonus lavaretus Pravdin [I. F.] 1931:227, Pl. 11 [Izvestiya Nauch.-Issled Ikhtiologicheskogo Instituta, Leningrad v. 12 (no. 1); ref. 18572] Lake Onego, opposite source of Svir River, Russia. Syntypes: ZIN 277306-07 (2, 2). Spelled poljakovi by authors, including Berg and also Kottelat & Freyhof 2007:372 [ref. 29996], original was poljakowi. •Questionably a synonym of Coregonus widegreni Malmgren 1863 -- (Kottelat 1997:119 [ref. 22952]). •Mention -- (Kottelat & Freyhof 2007:372 [ref. 29996]). Current status: Uncertain as Coregonus widegreni Malmgren 1863. Salmonidae: Coregoninae. Habitat: freshwater.