CATFISH GENUS NOTURUS RATINE SQUE 6 



Fannye A. Cook, Walter R. Courtenay, Jr., Frank B. Cross, Myvanwy 

 M. Dick, Samuel Eddy, D. H. Enlow, Charles E. Farrell, the late 

 Henry W. Fowler, Barry 0. Freeman, Glenn Gentry, Shelby D. 

 Gerking, Carter Gilbert, Francois Gouin, P. H. Greenwood, Harold 

 W. Harry, Clark Hubbs, Stanton Hudson, Robert H. Kanazawa, 

 Leslie W. Knapp, Ernest A. Lachner, Robert E. Lennon, L. W. 

 Lowe, Y. J. McGaha, Giles W. Mead, Robert R. Miller, George A. 

 Moore, Harry H. Moore, William M. Palmer, Wilham L. Pflieger, 

 Edward C. Raney, William J. Richards, Carl D. Riggs, Franklin O. 

 Roberts, C. Richard Robins, Perry E. Robinson, C. E. Ruhr, J. 

 Clark Salyer II, Leonard P. Schultz, Albert Schwartz, Frank J. 

 Schwartz, Donald C. Scott, W. B. Scott, Clarence L. Smith, Hobart 

 M. Smith, Philip W. Smith, WiUiam F. Smith-Vaniz, Franklin F. 

 Snelson, Jr., Victor G. Springer, the late Margaret Storey, Royal D. 

 Suttkus, Milton B. Trautman, Ethehvyn Trewavas, Denys W. 

 Tucker, Eugene W. Whitney, Martin Wiley, Norman J. Wilimovsky, 

 Howard E. Winn, Arthur Witt, Jr., Loren P. Woods, and Ralph W. 

 Yerger. 



I appreciate the permission of Carl L. Hubbs to include the de- 

 scriptions of Noturus albater and Noturus flavater. These species were 

 discovered and their previously unpublished names were coined 

 many years ago by Dr. Hubbs. The frontispiece, depicting Noturus 

 albater as drawn by the late Grace Eager for Dr. Hubbs, is repro- 

 duced here by permission of the Museum of Zoology, University of 

 Michigan. 



The photographs of Noturus lachneri, N. hiidebrandi lautus, N. 

 baileyi, and N. elegans from the Duck River system were made by 

 William F. Smith-Vaniz; the others by the University of Michigan 

 Photographic Services. 



The drawings of the premaxillary teeth, and of the pectoral spines 

 of Noturus lachneri, N. hiidebrandi lautus, N. baileyi, and N. elegans 

 from the Duck River system were made by Dorothea Schultz; all 

 others were rendered by William L. Brudon. 



William F. Smith-Vaniz and Fanny Phillips both greatly aided me 

 in the preparation of the charts and maps. 



The following individuals have read the manuscript or portions of 

 it at some stage in its preparation, and provided helpful criticisms; 

 I gratefully acknowledge their services: Reeve M. Bailey, Claude W. 

 Hibbard, Carl L. Hubbs, Karl F. Lagler, Robert R. Miller, George A. 

 Moore, and Milton B. Trautman. 



Finally, I am deeply grateful to Reeve M. Bailey, under whom 

 this study was initiated, for his enthusiasm, encouragement, many 

 suggestions, and helpful criticism. 



