PliATE 17. 



Pig. 27 — Amiurns natalis cupreus (Saf.) Jor. 

 White E., Ind. Eeduced one-third. 



Dentition upper ja'W. 



Dentition lower jaw 



Fig. 28 — Dentition of Amiurus natalis cupreus. 



Fig. 29 — Aniiuru.s natalis antonieBsis (Grd.) Jor. 

 Etowah E., Ga. 



Fig. 36— Aminms natalis antonionsis (Grd.) Jor 

 Etowah River, Georrfa. 



