102 WHITE TROUT. 



perience, equals the grayling's quickness ; strike 

 therefore, as I have said, at the rise. The grayling 

 comes into season in September, and may be fished 

 for throughout the winter months. The best 

 streams are the Derbyshire Wye and Derwent, 

 but it has been introduced into many others. As 

 a rule, it avoids the swift streams, and when intro- 

 duced into such is generally found to descend gradu- 

 ally lower and lower, until it finally disappears. 



WHITE TROUT. 



Whether the white trout " Salmo trutta" of 

 Linnaeus and of Yarrell be, as some naturalists 

 affirm, identical with the bull or gray trout " Salmo 

 eriox" it is not my purpose in this place to inquire. 

 I think not; I think that the fish are entirely 

 different, and that there are a great many distinct 

 species of trout which have not yet been classed 

 or described. There is the " sewin," for instance, 

 which may or may not be the grilse of the white 

 trout. I cannot believe it to be so ; if it were, why 

 should it be confined to Welsh rivers only ? There 

 is the " parr " " Salmo salmulus" which is so like 

 the young salmon as to be considered identical with 

 it, and which has very properly obtained legislative 

 protection in virtue of the similarity. There is a 



