PI.ATE 6. 



Pig. 11 Amiurus niveiventris (Cope.) 



Neuse River. (From type.) Reduced. 



Pig. 12— Amiurus niveiventris (Cope.) 

 Neuse River. (From type.) Reduced. 



Fig. 13— Amiurus nigricans (Xe S.) Gill. 

 Lake Erie. 



