38 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY III. 



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

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

 trals. It is, however, rather a Codoma than an Episema. 



Genus NQJEMIGONUS Eafinesque. 



13. NOTEMIGONUS AMERICANUS (L.) Jor. 



4 

 Notemigonus ischanus JORDAN (1877), Aun. Lye. Nat. Hist. 304. 



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

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



Genus CERATICHTHYS Baird, 



14. CERATICHTHYS RUBBIFRONS Jordan. 



Noconus rubrifrons JORDAN (1877), Ann. Lye. Nat. Hist. N. Y. 330. 



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

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



15. CERATICHTHYS BIGUTTATUS (Kirt.) Girard. 

 Abundant in the Oeonee; not noticed in the Ocmulgee. 



Genus SEMOTILUS Eafinesque. 



16. SEMOTILUS CORPORALIS (Mit.) Putnam. 



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

 species is almost confined to the smaller creeks and spring runs. 



CATOSTOMIim 

 Genus MYXOSTOMA Eafinesque. 



17. MYXOSTOMA CERVINUM (Cope) Jordan. 



The little "Jump Rocks" is very abundant at the Flat Shoals of the 

 Ocmulgee. 



18. MYXOSTOMA PAPILLOSUM (Cope) Jordan. 



Common in the Ocmulgee. 



Genus ERIMYZON Jordan. 

 19. ERIMYZON SUCBTTA (Lac.) Jordan. 

 From the Ocmulgee. 



