10 SALMONIDE. 



fario arc very striking. The pectorals in S. cacifer wlicn 

 expanded arc pointed, in S. fario they arc rounded. The 

 caudal fin in S. ccecifer is lunated at the end; in S. fario it 

 is sinuous or even. *S'. C(zcifcr has never any red spots ; S. 

 fario is scarcely ever without them. Tlie caudal rays arc 

 much longer in cacifer, than m fario, in fish of equal length. 

 In S. cacifer the tail fin is pointed at the upper and lower 

 extremities; in ty-yario they are rounded. The flesh of *S'. 

 cacifer is of a deep red, that of S. fario is pinkish and often 

 white. The csecal appendages in S. cacifer are from sixty 

 to eighty in number ; in »S'. fario I have never found them 

 to exceed forty-six.*" 



" Lochleven (of which the baiTcn isle and now dismantled 

 castle arc famous in history as the prison-place of the beauti- 

 ful Queen Mary) has long been celebrated for its breed of 

 Trout. These, however, have fallen off of late considerably 

 in their general flavour and condition, owing, it is said, to the 

 partial drainage of the Loch having destroyed their best feed- 

 ing ground, by exposing the beds of fresh-water shells, the 

 animals of which form the greater portion of their food.* 

 They spawn in January, February, and March." 



" The fish described does not appear to be peculiar to this 

 Loch, as I have seen specimens that Averc taken in some of 

 the lakes in the county of Sutherland with several other Trout, 

 Avhich were too hastily considered as mere varieties of S. fario. 

 It is more than probable that the Scottish lakes produce seve- 

 ral species of Trout known at present by the name of S. fario, 

 and which remain to be further investigated." 



Dr. Richardson, who has had opportunities of examining 

 very fine specimens of this celebrated Trout, considers it dis- 

 tinct from S. fario, and has pointed out some of the diflfer- 

 ciices between them : the scales are thick, and when dry 



* There are two or three varieties of S. fario in Lochleven with white and 

 pinkish flesh, which are much inferior in flavour to H. cacifer. — Encyc. Brit. 



