CRA YFISII 259 



They are an agency in the destruction of decaying animal bodies in the 

 water and from this standpoint are beneficial. Since they make holes 

 in dams and levees they may cause serious damage. The cotton growers 

 of the South also suffer because the crayfish eats young cotton plants. 

 Especially in the clay lands of Alabama and Mississippi do they interfere 

 with the raising of both corn and cotton. 



