486 AMERICAN FISHES. 
It is found generally in British America and Alaska, abundant north- 
ward, and extending to the extremity of the territory. 
THE TRICOLOR GRAYLING. 
Thymallus tricolor occurs in the streams of the southern peninsula of 
Michigan, and is abundant in Ausable River, and in the headwaters of the 
Missouri in Montana. 
It was described by Cope in 1865, but his notice, having been published 
in the proceedings of a scientific society not generally read by sportsmen, 
attracted but little attention. Popular interest was first excited, in 1873, 
by the discussions in ‘‘ Forest and Stream,’’ and by a letter from Professor 
Agassiz, published extensively in the daily papers, acknowledging the 
receipt of two specimens sent to him from New York through the agency 
of Mr. Hallock, who had received them from Michigan. The subject 
was then taken up by the newspapers, and the Grayling was soon well 
known. A name closely associated with the study of the Grayling is the 
honored one of the late James W. Milner. In 1871, Mr. Milner, in 
company with Mr. D. H. Fitzhugh, of Bay City, Mich., visited the 
Jordan River for the purpose of procuring specimens of this fish; but, 
although many were seen in the clear cold waters, they could not be in- 
duced to take the hook during the day spent on the river. In 1873 he 
again visited this region, and subsequently published several popular 
articles on the subject of ‘‘ Graylings of North America,’’ which consti- 
tute a considerable portion of the very few essays finished by him, out of 
the many which were planned, and interrupted by his untimely death. 
Milner’s description of the habitat of the Grayling is excellent: 
«In the center of the Lower Peninsula of Michigan is an elevated plateau, 
a sandy region, with a soil containing a very small per cent. of organic 
