cylindraceus, Salmo Pennant [T.] (ex Pallas) 1784:ciii [Arctic zoology; ref. 18530] Lena, Indigirfka, and Kowyma rivers, Siberia, Russia. No types known. Description appears on p. ciii and name appears again on p. cxxvii. •Valid as Coregonus cylindraceus (Pennant 1784) -- (Berg 1948:417 [ref. 12882]). •Valid as Prosopium cylindraceum (Pennant 1784) -- (Lee et al. 1980:99 [ref. 22416], Smith 1986:219 [ref. 22186], McAllister 1990:83 [ref. 14674], Page & Burr 1991:47 [ref. 18983], Chereshnev 1996:603 [ref. 24659], Reshetnikov et al. 1997:732 [ref. 24702], Reshetnikov 1998:47 [ref. 23570], Scott & Crossman 1998:286 [ref. 24570], Fuller et al. 1999:254 [ref. 25838], Lyons et al. 2000:40 [ref. 26594], Sheiko & Fedorov 2000:19 [ref. 25650], Chereshnev et al. 2001:68 [ref. 26736] with author as Pallas, Bogutskaya et al. 2001:45 [ref. 26178], Pietsch et al. 2001:143 [ref. 25688], Mecklenburg et al. 2002:189 [ref. 25968], Fedorov et al. 2003:35 [ref. 27579], Nelson et al. 2004:86 [ref. 27807], Bailey et al. 2004:154 [ref. 27882], Bogutskaya & Naseka 2004:145 [ref. 28183], Kottelat 2006:86 [ref. 28831], Scharpf 2006:32 [ref. 30386], McPhail 2007:386 [ref. 31199], Page & Burr 2011:393 [ref. 31215], Page et al. 2013:87 [ref. 32708], Parin et al. 2014:127 [ref. 33547], Afonso et al. 2016:22, 256 [ref. 36199], Love et al. 2021:54 [ref. 39279], Bogdanov & Knizhin 2022:1695 [ref. 40154] as cilindraceum, Page et al. 2023:83 [ref. 40505]). Current status: Valid as Prosopium cylindraceum (Pennant 1784). Salmonidae: Coregoninae. Distribution: Arctic and Pacific drainages, North America and Russia. Habitat: freshwater, brackish, marine.