160 salmonidj:. 



of the body to the length the same. The teeth, small and 

 numerous, occupying five rows on the upper surface of the 

 mouth, those of the central row, on the vomer, extending some 

 distance along it, the points turning alternately to each side, 

 one row on each side of the under jaw, and three or four teeth 

 on each side of the tongue, strong, sharp and curving back- 

 wards, well calculated to secure a living prey, or convey food 

 towards the pharynx. 



The dorsal fin-rays are twelve in number, the pectoral 

 thirteen, the ventral nine, the anal ten, and the caudal nine- 

 teen. When the Salmon Trout is placed by the side of a 

 Salmon, it is in comparison darker in colour in the body, but 

 lighter in the colour of the fins. 



It is with great satisfaction that I am enabled to present this 

 beautiful and gallant fish to my readers, and to establish with 

 certainty its identity with the Salmo Trutta of Yarrel, and its 

 existence in the North American Provinces. This fish has 

 hitherto never been described in any American sporting work, 

 nor I believe in any work of a scientific character, as an 

 American species, with the exception of the Parliamentary 

 Reports of Mr. Perley. The fish, described as the Salmo Trutta 

 in the "American Angler's Guide," and in "Smith's Fishes of 

 Massachusetts," is, as I have ah*eady observed, nothing resem- 

 bling it, but the very Brook Trout described above, with the 

 tricoloured fin, improved by a visit to salt water. 



I may here observe, en passant, that my distinguished friend, 

 Mr. Agassiz, was not aware, a few months since, of the 

 existence of this fish as an American species. 



It cannot fail to prove a great acquisition to the list of the 



