Coregonus sardinella Valenciennes, 1848 .

Least Cisco. To 47 cm (18.3 in) TL (Page and Burr 1991). Bering Strait and Siberia west to White Sea; Arctic coasts of Alaska east to Rasmussen Basin and Chantrey Inlet, King William Island, Nunuvut (Reist in Coad and Reist 2018) [records further east are without documentation—Reist in Coad and Reist 2018] and south to Bristol Bay, Bering Sea (Mecklenburg et al. 2002). Coastal waters near shore and fresh water. Anadromous and landlocked populations (Mecklenburg et al. 2002).