FISHES OF THE CUMBERLAND BASIN. 71 



LEPIDOSTEIDJE. 

 Genus LEPIDOSTEUS Lacepede. 



80. LEPIDOSTEUS OSSEUS (L.) Ag. 

 Generally abundant. 



81. LEPIDOSTEUS PLATYSTOMUS Eaf. 

 From Huntsville, Ala. (Agassiz). 



AOIPENSERID^l. 



Genus ACIPENSER Agassiz. 



82. ACIPENSER MACULOSUS Le Sueur. 

 ille) Ala. (Agassiz). 



83. ACIPENSER RUBICUNDUS Le Sueur. 

 From nuntsvilie, Ala. (Agassiz). 



POLYODONTIM]. 



Genus POLYODON Lacepede. 



84. POLYODON FOLIUM "Lac? 

 Abundant in the river-channels. 



VII. WATER-BASIN OF CUMBERLAND RIVER. 



Sixty-five species are known to occur in the waters of the Cumberland 

 Elver. Of these, forty-seven have been obtained in the lower course of 

 the river, i. e., in the vicinity of Nashville, by Professor Winchell, and 

 in Stone River, at Murfreesboro', by the present writers. In the upper 

 courseof the stream, thirty-three species have been obtained by Professor 

 Cope in the South Forkof the Cumberland in Tennessee and by Professor 

 Jordan at the Falls and in the Rock Castle, Round Stone, Big Laurel, and 

 other tributaries in Kentucky. Only fifteen species are, therefore, known 

 to be common to both the upper and lower courses of the stream. The 

 actual differences between the upper and lower faunae are, however, 

 probably very small, if similar streams are compared. The differences 

 really existing are probably chiefly due to the fact that the large fishes 

 inhabiting the lower part of the river are unable to ascend above the 

 falls of the Cumberland. 



Comparing the Cumberland River with the Tennessee, the disappear- 



