The Trout.'] OF ORKNEY. 223 



Species 3. — The Trout. 



A Trout, Wil. Icth. 199. Uaii Syn. Pise. 65. Salmo Fario, Lin. Sys. 509. 

 Brit. Zool. 250, Illus. pi. 40. 



Found in every burn in great plenty, so common as to 

 need no description. Seldom grows very large in our burns. 

 I have heard of a species of trout got in some of the lakes, 

 both here and in Shetland (but what species I know not), 

 weighing twenty-three to thirty-six or more pounds ; but these, 

 I dare say, are uncommon. 



Species 4. — The Parr. 

 Brit. Zool. III. No. 



Pretty frequent in the shallower lakes and clear burns, 

 though not in such numbers as I have observed them in 

 Scotland. Seldom grows above six inches in length. What 

 distinguishes this from the other species of trout, is a row of 

 large bluisii spots on each side, lying transversely along the 

 side line, which is peculiar to this fish. 



