80 CONTRIBUTIONS TO NORTH AMERICAN ICIITHVOLOGY III. 



Genus SEMOTILUS Rafinesque. 

 50. Semotilus coeporalis (.1///.) Pat. 

 From Eock Castle River. 



CATOSTOMIDJ]. 

 Genus MYXOSTOMA Rafinesque. 



51. MyXOSTOMA MACROLEPIDOTUM DUQUESNH {Le S.) Jor. 



Common iu the Cumberland. 



Genus ERIMYZON Jordan. 

 52. Erimyzon sucetta [Lac.) Jor. 

 From tbe Cumberland at Nashville and from the Kock Castle. 



Genus MINYTREMA Jordan. 



53. MiNYTREMA MELANOPS {Raf.) Jor. 



From the Cumberland at Nashville. 



Genus CATOSTOMUS Le Sueur. 

 54. Catostomus nigricans Le S. 

 Common in the Cumberland. 



55. Catostomus commersoni (Lac.) Jor. 

 Very common in the Cumberland. 



Genus CYCLEPTUS Rafitiesque. 



56. Cycleptijs elongatus {Le 8.) Ag. 



From the Cumberland at Nashville. This species is known as *' Black 

 Horse", " Gourd-seed Sucker", and " Missouri Sucker". 



Genus CARPIODES Rafinesque. 



57. Carpiodes cutisanserinus Cope. 

 From the Cumberland River at Nashville. 



