Fishes of the Western North Atlantic 



543 



Salvelinus)\ and usually more than I20 Gastric coeca (av. only 38 or 39 In Salvelinus) 

 {67: 928). 



Size. The Lake Trout is by far the largest of the small-scaled salmonoids of North 

 America. One of 63 pounds was taken on rod and reel by Miss L. L. Hayes in Lake 

 Athapapuskow, Manitoba, in August 1930, and fish even up to 120—125 pounds have 

 been reported by commercial fishermen, but without supporting evidence. 



Range. Lakes and some streams of North America, from the northern United 

 States north to the Arctic Circle, sometimes occurring as a stray in salt or brackish 

 water of Arctic Canada. 



Figure 129. Cristwomer namaycush, 290 mm SL, St. Lawrence basin, Canada, MCZ 33163. 



Remarks. The Lake Trout of Lake Superior was described by Louis Agassiz in 

 1850 as a separate species, Salmo siscowet (j: 336), which was reduced to the rank 

 of subspecies by Jordan and Evermann with the remark "that it is probably a local va- 

 riety" {^2: 505). Neither do I find anything in Agassiz' original description to justify 

 any formal recognition of siscowet in ichthyological nomenclature. 



Species. One species only is known, the common Lake Trout (C namaycusK) of 

 northern North America, which perhaps includes one recognizable subspecies, siscowet 

 L. Agassiz 1850, in Lake Superior. 



Cristivomer namaycush (Walbaum) 1792 



Lake Trout, Mackinaw Trout, Togue, Gray Trout 



Figures 118, 129 



Cristivomer namaycush is typically a freshwater fish ; the only reason for mentioning 

 it here is that stray specimens have been reported for Hudson Bay, for Ungava Bay in 

 northern Quebec, and for the northeastern Labrador coast. Should one be taken in salt 

 water, the minuteness of its scales would show at a glance that it is not Salmo salar 

 (Atlantic salmon, p. 460) or any other member of the genus Salmo for that matter 



