36 SALMONID^. 



ABDOMINAL 



MALACOPTERY'GII. SALMONIDM. 



THE SALMON-TROUT. 



Salmo trutta, LinNjEus. 



,, ,, WiLLUGHBY, p. 198. 



,, ,, Sea-Trout, Penn. Brit. Zool. vol. iii. p. 397 ! 

 „ „ „ Flem. Brit. All. p. 180, sp. 45. 



The Salmon-Trout is, of the migrating species in this 

 country, the next in value to the Salmon. It is most 

 abundant in the rivers of Scotland, and its flesh is excellent. 

 It is distinguished by the gill-cover being intermediate 

 in its form between that of the Salmon and Bull-Trout. 

 The representation on the right-hand of the vignette at 

 page 5 is that of the Salmon-Trout. The posterior 

 free margin, it will be observed, is less rounded than that 

 of the Salmon on the left hand, but more so than that 

 of the Bull-Trout, which is represented by the middle 

 figure. The line of union of the operculum with the sub- 

 operculum, and the inferior margin of the suboperculum, 

 are oblique, forming a considerable angle with the axis of 

 the body of the fish. The posterior edge of the preoper- 

 eulum rounded, — not sinuous, as in the Bull-Trout. The 



