NORTH-CAROLINA GEOLOGICAL SUKVEY. 



253 



FIG. 115. 



FASCIOLARIA SPARROWI. N. S. (Fig. 115.) 



Shell rather thick, turbinate ; 

 whirls six or seven rounded, or- 

 namented with spiral, and rather 

 rounded ribs; ribs of the body- 

 whirl, about ten, striated longitu- 

 dinally, but obliquely striated on 

 the upper part of the whirl ; plaits, 

 three upon the pillar lip ; the ribs 

 alternate, being coarser and finer 

 for the ribs which belong strictly 

 to the aperture ; aperture larger 

 than the spire. 



This species is quite distinct 

 from the former, the ribs are less 

 numerous, flatter, and the striae 

 are partly oblique and partly lon- 

 gitudinal, or in the direction of 

 the axis of the shell. The five 

 upper whirls have varices in both 

 species. Rare in the miocene 

 marl bed of Mrs. Purdys, Bladen 

 county. One-half the size. 

 This fine fossil is dedicated to Thos. Sparrow, Esq., of Beau- 

 fort county. 



FASCIOLARIA ALTERNATA. N. S. 



Shell rather small, but thick turbinate ; whirls six or seven 

 slightly inflated, body whirl elongated and ornamented with 

 strong spiral lines, and with fine ones between, but which 

 are frequently obsolete. All the whirls are tuberculated. 

 Spire shorter than the aperture Plaits two. 



FASCIOLARIA NODULOSA. N. S. (Fig. 116.) 



Shell rather thick, whirls about seven, all nodulose or 



