FISHES OF THE TENNESSEE BASIN. 57 



Gila estor. 

 Quassilabia lacera. 

 Carpiodes bison. 



Bubalichthys urus. 

 Amia calva. 

 AcipeDser maculosus. 



In all, twenty species. 



Increased knowledge will considerably modify these lists. It is 

 probable that the sixteen species in the first list, with the probable 

 exceptions of Noturus eleutherus and SalveUnus fontinaUs, will be found 

 to inhabit the lower part of the river basin, if sought for in suitable 

 localities. It is likely that the tributaries of the Tennessee having their 

 source in the Cumberland Mountains in Alabama have the same fish- 

 fauna as similar streams rising in the Cumberland Mountains in Virginia. 



About twelve species are at present known only from the Tennessee 

 River and its tributaries. These are : — 



Hadropterus aurantiacus. 

 (Etheostoma) cinerea. 

 (Etheostoma) tessellata. 

 Nothouotus vulneratus. 

 Nothonotus rufilineatus. 

 Poecilichthy s jessiae. 



(Lepiopomus) bombifrous. 

 Alburnops spectrunculus. 

 Hydrophlox lacertosus. 

 Phoxinus flammeus. 

 Episema leucioda. 

 Ceratichthys monachus. 



As we go from the Alabama to the Tennessee, we note an increased 

 resemblance in the fish-fauna to that of the Ohio and U[)per Mississippi 

 region. The following are some of the Northern or Western types 

 added : — 



Diplesium, Etheostoma, Poecilichthys, Labidestlies, Zygonectes (proper), 

 Episema, Hemitremia, Chrosomus, Phoxinns, Placopharynx, Quassilabia. 



COTTID^. 



Genus POTAMOCOTTUS Gill 



1. POTAMOCOTTUS MERiDiONALis (Girard) Gill. 



From Chickamauga River. Also a single specimen from the Cave 

 Spring at Cumberland Gap. Abundant in the French Broad River 

 (Cope) and in the Holston. 



ETHEOSTOMATID^. 

 Genus PERCINA Haldeman. 

 2. Percina caprodes {Kaf.) Grd. 

 Generally abundant in clear streams. 



