Figure 27. A. Channel catfish, Ictahirus lacustris punctattts, 15 inches long. 

 B. Northern yellow bullhead, Amemrtis natalis natalis, 12 inches long. C. North- 

 ern brown bullhead, Ameiurus nebulostis nebulostis, 9 inches long. D. Northern 

 black bullhead, Ameiurus melas melas, 10 inches long. 



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