312 



NORTH-CAROLINA GEOLOGICAL SURVEY. 



coral. Fig. 251, cast of the concave surface natural size; 

 Fig. 250, magnified view of a portion of the surface. Eocene 

 Wilmington. 



FIG. 250. 



FIG. 



FIG. 253. 



LUNULITES OBLONGUS. N. 8. (FigS. 252 & 253.) 



Polypidom small, conical ; cells arranged along a straight 

 line, from the base to the margin ; 

 open cells show that they are near- 

 ly quadrangular; the closed cells 

 do not show an orifice ; there is a 

 simple film spread over the cell, 

 and the margins are simple and 



^ unlike den ticulata. Fig. 253, great- 



ly enlarged view of the cells ; small figure shows 

 the natural size of the fossil. 



DISCOPORELLA UMBELLATA. (FigS. 254: & 255.) 



It is impossible to discover any difference between our 

 Discoporella and that of the miocene of France ; the cells 



have two orifices at op- 

 posite acute angles, and 

 the same arrangement 

 of cells. Fig. 255 great- 

 ly enlarged. This figure, 

 however, fails to give a 

 clear and correct view of 

 the fossil. A reference 

 therefore, to Pietet's PL XC, page 15, is necessary. 



The small lunulites begin to form at the apex, and for this 



FIG. 255. 



FIG. 254. 



