NORTH-CAROLINA GEOLOGICAL SURVEY. 



263 



Oolumellar tumid, tortuous; obliquely plaited with three 



folds." 



FIG. 140 



FIG. 141. 



VOLUTA OBTUSA. N. S. (Fig. 141.) 



Shell fusiform, contracted above 

 the body-whirl, and forming thereby 

 a sub-cylindrical spire ; spire obtuse 

 apex papillated and hook- 

 ed ; body-whirl plaited 

 longitudinal^ at its top ; 

 columellar lip furnished 

 with only two plaits. 



Mr. Flowers miocene 

 marl, Bladen county. 



FAMILY CONIDAE. 



As the name implies, the shells are conical from the great 

 preponc^erance of the body whirl over the short depressed 

 spire. The aperture is long and narrow, and the outer lip is 

 notched near its suture. 



CONTJS ADVERSARITJS CON. (Fig. 142.) 



Shell conical and turned to the left ; the surface is marked 

 by revolving lines ; towards the face of the pillar lip the lines 

 are strong ; whirls of the spire rather concave ; edges eub- 

 carinated ; labrum sharp, edge convex, and forming a sinus 

 near the suture. Common in all the marl beds upon the 

 Neuse and Cape Fear rivers. 



CONUS DILTJIVIANUS. (Fig. 143.) 



Shell conical, much smaller than the preceeding, and the 

 whirls are turned to the right ; surface markings the same ; 

 the revolving lines are less oblique than in the C. adversarius. 





