38 CONTKIliUTIONS TO NORTH AMERICAN ICHTHYOLOGY — III. 



llie genus in the presence of a single row of teetli and in the more ante- 

 rior position of tbe dorsal, which is scarcely at all posterior to the ven- 

 trals. It is, however, rather a Codoma th;in an Episema. 



Genus NOTEMIGONUS Hajhiesquc. 



13. NOTEMIGONUS AMERICANUS {L.) Jor. 

 .\otrmi'joints i.^iliiinu.'i .JoRDAN (1^77), Ann. Lye. Nat. Hist. 3r>4. 



Very abundant everywhere in the Ocmulgee in still or deep waters. 

 Adult specimens have the lower fins yellow, tipped with scarlet. 



Genus CERATICIITllYS JBaird. 



14. Ceratichtiivs iubrifrons Jordan. 



Xoconiis nibrifrons Joudan (1877), Ann. Lye. Nat. Hist. N. Y. :{30. 



This handsome little fish was first described from the Ocmulgee River, 

 where it is abundant. It is also common in the Oconee. 



15. Ceraticothys biguttatus (Kirt.) t'irard. 



Abundant in the Oconee; not noticed in the Ocmulgee. 



Genus SEMOTILUS llafmesqm. 



IC. Semotilus couporalis {Mit.) Putnam. 



From a small brook, tributary to the Ocmulgee. In the South, this 

 species is almost coufuied to the srimller creeks and spring runs. 



CAT08T0MIDJE. 



Genus MYXOSTOMA Ilafinesque. 

 17. Myxostoma CERViNUM {Gope) Jordan. 



The little ".Tumi» Kocks" is very abundant at the Flat Shoals of the 

 Ocmulgee. 



18. Myxostoma paimllosum {Cope) Jordan. 



Common in the Ocmulgee. 



Genus ERDrVZON Jordan. 



1!». ImjimYZON SUCETTA {Lnc.) Jordan. 

 From the Ocmulgee. 



