80 Charles H. Hocutt, Robert F. Denoncourt, Jay R. Stauffer, Jr. 

 , and D.S. Lee. In press. The zoogeography of the freshwater fishes 



of the Potomac River basin, in W. T. Mason (ed.). Biological Resources of 



Potomac River Basin Streams Symposium. Interstate Commission 



Potomac River Basin. 

 , , M.T. Masnik and J.E. Reed, Jr. 1975. The longitudinal distribu- 

 tion of the fishes of the East River, West Virginia- Virginia. Va. J. Sci., 



26(3):121-125. 

 Taylor, W.R. 1969. A revision of the catfish genus Noturus Rafinesque with an 



analysis of higher groups in the Ictaluridae. U.S. Natl. Mus. Bull. 282. 315 



pp. 

 Thompson, B.A. 1977. An analysis of three subgenera (Hypohomus, Odontopholis and 



Swaima) of the genus Percina (Tribe Etheostomatini, Family Percidae). 



Ph.D. dissert., Tulane Univ., New Orleans. 399 pp. 

 Wallace, D.C. 1972. The ecology of the silverjaw minnow, Encymba buccata Cope. 



Am. Midi. Nat. £7(1): 172-1 90. 

 1973. The distribution and dispersal of the silverjaw minnow, Encymba 



buccata Cope. Am. Midi. Nat. «S9(1):145-155. 

 Wright, F.J. 1934. The newer Appalachians of the South (Part I). Between the 



Potomac and New Rivers. Denison Univ. Bull., J. Sci. Lab., 29(1 ) :1-105. 



Accepted 27 June 1978 



