THE SWALLOW SMOLT. 37 



from the rockiest portions of the river, such as the tur- 

 bulent eddies and foam-runs of the Trow Crags. Its 

 average weight is from two to four pounds, but indivi- 

 duals have been caught that weighed nearly half a stone. 

 Were the production of a breed of hybrids betwixt the 

 fario and eriox a thing of likely occurrence, I might 

 possibly have fixed upon the swallow- smolt as the issue ; 

 questioning, however, the existence of such a production, 

 I cannot help regarding it as distinct species of the 

 Salmonida. 



