41 G ORDER MALACOPTERYGII ABDOM1NALES. 



are ten in number or thereabouts. Their stomach, 

 long and narrow, forms a fold, and is followed by 

 very numerous cceca ; their natatory bladder extends 

 from one end of the abdomen to the other, and 

 communicates above with the oesophagus ; their body 

 is almost always spotted, and their flesh in general is 

 very good. 



They reascend into rivers for the purpose of spawn- 

 ing, jumping even over cataracts ; and some are to be 

 found even in the rivulets and small lakes of the 

 highest mountains. 



Salmo salar, L., Bl. 20. (the salmon), is the largest 

 species of the genus, with red flesh, and irregular 

 brown spots, which are very speedily effaced in the 

 fresh water ; the cartilaginous hook formed by its 

 under jaw is not very considerable even in the old 

 male. This fish comes from all the Arctic Seas, 

 from whence it enters in large shoals into the rivers in 

 spring. Its fishery is very important in all the 

 northern countries, where quantities of salmon are 

 salted and dried. 



Salmo hamatus, Cuv., Bl. 98, is spotted with red 

 and black on a whitish ground; the muzzle of the 

 male is narrowed into a point, and the hook of the 

 lower jaw is much more marked than in the salmon. 

 Its teeth are stronger ; its flesh is also red, but 

 thinner, and less esteemed. It is also caught in the 

 mouths of our rivers. 



Salmo Sckiefermulleri, Bl. 103. (sea trout), less than 

 the salmon, with teeth more slender and longer, the 



