298 



THE RIVER-SIDE NATURALIST. 



2. The FRESH- WATER SHRIMP (Gammarus pulex) is ex- 

 tremely common in all springs 

 and rivers, particularly where de- 

 caying vegetable matter has ac- 

 cumulated. It generally keeps 

 near the bottom, and swims on 

 its side with a kind of jerking 

 motion, and feeds on dead fishes 

 or any other decaying matter. 



2. THE FRESH-WATER SHRIMP. _ 



In some parts of the Kennet this 

 crustacean is to be found in great numbers. 



