74 



SALMONIDE. 



This species has been called a Red-bellied Trout ; but 

 the latter name is far from applicable, as the Trout have a 

 formidable row of teeth along the whole line of the vomer, 

 and the tail at all ages much less forked. 



The vignette represents the heads of two Charr ; that on 

 the left is from Keswick, the other from Wales. The 

 Northern fish has the mouth, teeth, and eyes smaller com- 

 paratively than those of the Welsh Charr : there is also a 

 diiference in the form and proportions of the gill-cover. 



JSS>) 



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