American Fisheries Society 147 



(11) The natural enemies to bass fry in Mammoth 

 Spring ponds are two fishes that enter from Mammoth 

 Spring lake, the "grass pike" and "codfish," which, I believe, 

 are the genera Esox and Coitus, respectively, or common 

 pickerel and miller's thumb. It is difficult to exclude these 

 enemies but not impossible when intake wire mesh that is 

 16 meshes to the inch is imbedded in a concrete base. 



(12) The Japanese methods of producing "mijinko" 

 must be studied if American black bass rearing is to be 

 carried on largely and successfully. 



