406 SAMLET SALMON. Class IV. 



They have a general resemblance to the trout, 

 therefore must be described comparatively. 



First, the head is proportionably narrower, 

 and the mouth less than that of the trout. 



Secondly, They seldom exceed six or seven 

 inches in length ; at most, eight and a half. 



Thirdly, The pectoral fins have generally but 

 one large black spot, though sometimes a single 

 small one attends it ; whereas the pectoral fins 

 of the trout are more numerously marked. 



Fourthly, The spurious or fat fin on the back 

 is never tipped with red ; nor is the edge of the 

 anal fin white. 



Fifthly, The spots on the body are fewer, and 

 not so bright. It is also marked from the back 

 to the sides with six or seven large bluish bars ; 

 but this is not a certain character, as the same 

 is sometimes found in young trouts. 



Sixthly, The tail of the samlet is much more 

 forked than that of the trout. 



These fish are very frequent in the rivers of 

 Scotland, where they are called Parrs* They 



* This species is twice figured, once under the name of 

 Samlet, and again under that of Parr, in the present as it was 

 in the former edition of the British Znolugy; in the latter the 

 engraving of the Parr was inadvertently referred to No. 78, in- 

 stead of No. 148, an error which has not escaped the severe 

 observation of a recent writer. It may here be remarked that 

 the spots on the sides of the Parr of Scotland are much larger 



