83 



Many species are also found in rirerS;, stagnant 

 ponds, and ditches, and are often brought up 

 in the net while fishing for insects. Many are 

 found upon various kinds of fish ; and others 

 under the bark of decayed trees. After a storm, 

 or gale of wind, as well as on the retiring of 

 the tide, the beach should be well searched. 

 Many, it is possible, make their appearance only 

 in the evening and night. The fishermen and 

 shrimp-catchers should be requested to pre- 

 serve any which they may drag up ; and the 

 different fish brought to market should be exa- 

 mined. By this means rare and interesting species 

 may be obtained. Many of these animals are 

 extremely local, and the collector should be 

 careful not to neglect the opportunity of taking 

 a sufficient quantity, however plentiful they 

 may appear *, for it often happens that what is 

 common with the collector, is unknown to the 

 naturalist. 



For collecting Crustacea, tlie smaller kinds 

 might be put into a wide mouthed bottle, half 

 filled with water or spirits of wine. The larger 



