lake trout (Salvelinus namaycush) Author Harry Seeley (1839–1909)  
Description
English: Salmo lacustris (Willoughby)
Subject: Lake trout
Tag: Fish
Date 1886
Source/Photographer
English: Seeley, H. G. (1886) Fresh-Water Fishes of Europe : a History of their Genera, Species, Structure, Habits, and Distribution, London: Cassell & Company, Limited
Source: https://commons.wikimedia.org/wiki/File:FMIB_48124_Salmo_lacustris_(Willoughby).jpeg
Lake trout (Salvelinus namaycush) is a freshwater char living mainly in lakes in northern North America. Other names for it include mackinaw, lake char (or charr), touladi, togue, and grey trout. In Lake Superior, it can also be variously known as siscowet, paperbelly and lean. The lake trout is prized both as a game fish and as a food fish.