SPOTS ON TROUT. 41 



TROUT FROM THE WANDI.E. 



most singular way, — their colour being like 

 that of the tortoise : the nature of the water, 

 exposure to the light, and probably the kind 

 of food, produce these effects. I think it pos- 

 sible, when trout feed much on hard sub- 

 stances, such as larvae and their cases, and 

 the ova of other fish, they have more red spots, 

 and redder fins. This is the case with the 

 gillaroo and the char, who feed on analogous 

 substances ; and the trout, that have similar 

 habits, might be expected to resemble them. 

 When trout feed most on small fish, as min- 

 nows, and on flies, they have more tendency 

 to become spotted with small black spots, and 



