236 NORTH-CAROLINA GEOLOGICAL SURVEY. 



OXYRHINA XYPHODON. AGASS. (Fig. 64:.) 



Lanceolate ; base of the flat side 

 marked with shallow furrows; en 

 amel extends a little lower on the 

 inner than outer side. 



OXYRHINA HASTILIS. AGASS. (FigS. 65 & 66.) 



Tooth rather elongated ; lanceolate ; nearly equilateral ; 

 bone of the enamel more arched than that of the oxyrhina 



FIG. 65. 



FIG. 66. 



xyphodon, and the root seems to be less developed. It close 

 ly resembles the xyphodon. 



OXYRHINA DESORII. GIBBS. (Fig. 67.) 



Tooth thick and strong ; roots well developed and forked ; 

 enamel similar in texture to the carcharodon, and also cracked 

 longitudinally. 



