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, 

 ly resembles the xyphodon. 



It close- 



OXYRHINA DESORH. GIBBS. (Fig. 67.) 



Tooth thick and strong ; roots well developed and forked ; 

 enamel similar in texture to the carcharodon, and also cracked 

 longitudinally. 



