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ILLINOIS ACADEMY OF SCIENCE 



ravines and they constitute the smaller drainage ditches of the 

 prairies. They are usually under four or five feet in w^idth and 

 they may be but a few inches wide. The depth is seldom over 

 a foot. They are active for short periods except during un- 

 usually wet seasons. Many of them never contain fish. 



The following table shows the distribution of the common 

 species of fish in the Charleston region in the four types of 

 streams just described. 



Table Giving Distribution of the Thirty-eight Common 

 Species of Fish in the Charleston Region 



