FISHES OF NEW YORK 267 



the snout, and contained four and a half to five and a half 

 times in length of head. The maxilla reaches far behind the 

 eye; its length nearly half that of head. The origin of the 

 dorsal is midway between tip of snout and root of tail. The 

 length of the base equals length of maxilla; its longest ray one 

 sixth of total without caudal. The ventral is under the hind 

 part of dorsal; its length half the length of head. The append- 

 age is very short, about half the length of eye. The fin, when 

 extended, reaches nearly to the vent. The distance between 

 ventral origin and anal origin is one fifth of total length with- 

 out caudal. The anal base is about one third of length of head; 

 the longest ray half of length of head; the last ray equal to 

 eye. The pectoral is nearly tw r o thirds as long as the head. 

 B. 11 to 12; D. 9 to 10 besides several rudiments; A. 9 and 

 several rudiments; V. 9. Scales of lateral line about 200. 



The coloration is extremely variable, generally grayish, in the 

 variety known as the tuladi, nearly black. Alaskan specimens 

 are usually very dark; occasionally the upper parts are pale. 

 The sides are profusely covered with roundish pale spots, some- 

 times with a reddish tinge. On the back and top of head there 

 are fine vermiculations resembling those of the brook trout. 

 The caudal in addition to numerous pale spots has many small 

 dark blotches. 



The lake trout has received many names, among which are the 

 following: Mackinaw, Nauiaycush, togue, tuladi, and salmon 

 trout. Additional names of the species are lunge, red trout, 

 gray trout, and black salmon. Togue and tuladi are names ap- 

 plied in Maine, New Brunswick and Canada; Mackinaw and 

 salmon trout in the Great lakes region, the latter used also in 

 New York. Namaycush is of course an Indian name. 



The lake trout is native in the Great lakes region, lakes of New 

 York and New England, Idaho and northward into Labrador, 

 British America and Alaska. Extending over such a wide 

 range of country, it varies greatly in size, form and color, which 

 will in part account for the various names which it has received. 

 It has been found above the Arctic circle in Alaska. 



