116 GEOGRAPHICAL DISTRIBUTION. 



The sprat 1 and the anchovy, 2 are two other 

 fishes of the present tribe, the former, at certain 

 seasons, furnishing a considerable supply of food 

 to the lower orders, and also a fertilizing kind of 

 manure to the farmer and hop-grower, though, 

 it must be confessed, very annoying to the tra- 

 veller passing through a country where it is so 

 employed, by its disagreeable stench, and to 

 those who inhabit it by its putrid effluvia, which 

 I have known to produce fevers ; the other minis- 

 tering to the enjoyment and luxury of the wealthy 

 by its piquancy when pickled, or reduced to an 

 essence ; but on these I shall not further enlarge. 



The next tribe of migratory fishes is one whose 

 several species are intermediate between marine 

 and fresh- water fishes, roving indifferently in the 

 sea, and rivers, and lakes, and thus is fitted by 

 Providence to make up to the inhabitants of 

 inland countries their distance from the other 

 migrators, by a supply brought, as it were, to 

 their very doors. The fishes in question belong 

 also to the abdominal class, and form the salmon 

 genus, including the salmon, 3 the salmon-trout, 4 

 the trout, 5 the grayling, 6 the charr, 7 the smelt, 8 

 the hucho, 9 and many other species. I shall, 

 however, confine my observations principally to 



1 Clupea Sprattus. z C. encrasicolus. 



3 Salmo Salar. * S. Trutta. 



5 S. Fario. 6 $. Thymallus. 



7 S. Alpinus. 8 S. Eperlanus. 

 9 S. Hucho. 



