222 NATURAL HISTORY \_Fislie$. 



Species 2.— The Bull Trout. 



Trutta Salmonata, the Salmon Trout, Bull Trout or Scurf, Rail Syn. Pise. 63. 

 Wil. Icth. 193, 198. Salmo Trutta, Lin. Syst. 509. Brit. Zool. 249- 



This species is found in great quantities in the loch of 

 Stenness through the whole summer, especially in that part 

 of it which is called the Harra Loch. 



These grow not to so large a size as the true trout (here 

 called Burn I'rout), which are found in the very same places 

 as the former ; but these not so much esteemed, as the flesh is 

 always white, and but ordinary. However, there is seldom 

 any distinction made among our commons, but all are eaten. 



These, as well as others, are caught in small houses, built 

 on our burns, into which the fish can easily make his way, but 

 cannot so easily get back again. However, this is only prac- 

 ticable in harvest, when they begin to make their way into 

 the very smallest burns, in order to spawn. 



They lose season on spawning, and immediately betake 

 themselves to the sea. 



