PLEIOCENE FOSSILS- 113 



Description. Shell thin, obliquely-conical, carinated ; apex sub-acute ; lines of growth 

 irregular, waved ; aperture sub-oval, angulated behind, margin thin. 



This is the first of the genus yet found in the Tertiary of the United States ; the carina 

 or reflexed keel, which extends from the apex to the basal margin, is sufficiently charac- 

 teristic of this rare species. 



Presented to us by the Hon. W. I. Bull, of St. Andrews, whose name we attach to it. 



Plate XXV. Fig. 13, Side view of fossil, to show the carina.. 

 " 13a, Outline of the aperture. 



Locality. Pee Dee. . Museum^ College of Charleston. 



FISSURELLIM. 

 FISSURELLA. — Lam. 



FISSURELLA REDIMICULA. — Sat. 



Plate X5V. Fig. 14. 



Fissurella redimicula, Say, Jour. Acad. Nat. Sci., Vol. 4, p. 132, pi. 8. fig. 1. 



T. testa ovato-ovali, oblonga, aliquanto elevata, crassa, costata; costis longitudinalibu's 

 alternantibus, approximantibus; apertura inclinata, subtruncata. 



Description. Shell ovate-oval, oblong, somewhat elevated, thick, costate; cost* longi- 

 tudinal, alternate, approximate; aperture inclined, subtruncated. 



This is the only species of Fissurella we have found in the Pleiocene of this State; it 

 is common to the Meiocene of Maryland and Virginia, and became extinct at the close of 

 the Pleiocene period. 



Plate XXV. Fig. 14, Shell natural size, viewed from above. 



Locality. Pee Dee; Smith's, Goose Creek. Museum, College of Charleston. 



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