Author H L Todd  
Description
English: Namaycush or Lake Trout
Salvelinus namaycush (Walb.), Goode
Subject: Lake trout
Tag: Fish
Date 1884
Source/Photographer
English: Goode, George Brown (1884) Fisheries and Fishery Industries of the United States: Section I, Natural History of Useful Aquatic Animals, Plates, Washington, DC: Government Printing Office
Source: https://commons.wikimedia.org/wiki/File:FMIB_51076_Namaycush_or_Lake_Trout.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.