250 



NORTH-CAROLINA GEOLOGICAL SURVEY. 



clined slightly to the summit, having fine revolving lines in- 

 distinct, but prominent and waved on the base of the body- 

 whirl ; canal long and tapering." Miocene marl, Cape Fear. 



PYRULA SPIRATA, LAM. FULGUR PYRTJLOIDES. SAY. FTTLGUR 



PYRUM, CON. 



Shell pyriform ; spire depressed obtuse ; whirls flattened, 

 and traversed by numerous revolving lines ; suture canicula- 

 ted. It still lives upon the coast, and is common in the post 

 pleiocene of North-Carolina. 



PIG. 109. 



FIG. 110. 



PYRULA RETICTJLATA LAM SYCOTYPUS RETICU- 



LATUS. (Fig. 109.) 



Shell thin, cancellated ; spire very short > 

 surface marked by revolving lines, which are 

 intersected by longitudinal ones, giving the 

 shell its reticulated appearance or character. 

 Occurs both in the miocene and post pleio- 

 cene beds, particularly at Beaufort. It is of- 

 ten much larger than the figure. 



FUSTJS LAM. 



The genus Fusus is distinguished by 

 its straight open canal and the ab- 

 sence of plaits upon the columella. 



FUSUS QUADRICOSTATUS. (Fig. 110.) 



Shell thick, spire depressed, body 

 whirl, inflated and ornamented by 

 four elevated equidistant spiral belts, 

 umbilicus large. Newborn. 



FUSUS EQUALIS. N. S. (Fig. 111.) 



Shell thick, spire rather short, conical ; whirls eight round- 

 ed and somewhat ventricose, and ornamented by numerous 



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