f PLATE 36. 
=urees— —— = 
SSS 
if ; ZZ = ‘ 
| — 
Pectoral spine, 2 diams, 
Dentition both jaws. 
Dentition upper jaw. 
Fic. 54—Noturus flavus Raf. 
Ohio R., W. Va. Reduced one-sixth. 
Fic. 55—Noturus flavus Raf. 
Ohio R., W. Va. Reduced one-sixth. 
Fic. 56—Noturus insignis (ich ) G. & J. 
Penna. 
