Figure 36. — Channel catfish, Ictalurus punctatus; yellow bullhead, Ictalurus natalis; stonecat, Noturus flavus ; 



tadpole madtom, Noturus gyrinus, 



46. Ictalurus punctatus (Rafinesque), channel catfish (fig. 36) 



One channel catfish was captured in a fyke net on the St. Louis River, 



Record by state and county: 

 Minnesota - St. Louis 157. 



49. Ictalurus natalis (Lesueur), yellow bullhead (fig. 36) 



The yellow bullhead was collected from four larger streams of Lake Superior. 



Records by state and county: 

 Michigan - Ontonagon 99. 

 Wisconsin - Ashland 131; Douglas 152, 156. 



50. Noturus flavus Rafinesque, stonecat (fig. 36) 



Stonecats are limited to Lake Superior tributaries in Bayfield and Douglas Counties, Wis. 

 They are common in these streams. 



Records by state and county: 



Wisconsin - Bayfield 147, 149, 150, 151; Douglas 152, 153, 154, 155, 156. 



51. Noturus gyrinus (Mitchill), tadpole madtom (fig. 36) 



Tadpole madtoms were captured in four Lake Superior streams of Wisconsin. Most collected 

 specimens came from fall fyke nets. 



Records by state and county: 



Wisconsin - Ashland 131; Douglas 153, 155, 156. 



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