108 PLEIOCENE FOSSILS. 



margine orbiculato, dentato, apice subcentrali, prominenti; septo subovali, pro/undo, mar- 

 ginibus solutis. 



Description* Shell sub-orbicular conical, with irregular ribs, having course, concen- 

 tric wrinkles, which give the margins a profound scollop; margins circular, apex, sub- 

 central, prominent; diaphragm sub-oval, profound, with free margins. 



This species varies much in character, especially the young shells, which sometimes 

 have obsolete ribs. It is common in the Meiocene of Virginia and Maryland, and found 

 abundantly in the Pleiocene of this State. 



Plate XXV. Figs. 4, Interior and exterior of shell, natural size. 



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



C E U C I B (J L U M E A M S A . — C o n . 

 Plate XXV. Fig. 5. 



Dispotaea ramosa, Con., Jour. Acad. Nat. Sci., Vol. 8, p. 187. 

 Dispotsea ramosa, Con., Foss. Med. Ter., p. 79, pi. 45, fig. 3. 

 Crucibulum ramosa, Con., Pro. Acad. Nat. Sci., Vol. 7, p. 30. 



C. testa subovali, elevata; oostis prominentibus planulatis lineis ramosis ornatis; apice 

 ad latus inclinata; septo ovato, integro. 



Description. Shell sub-oval, elevated; ribs prominent, somewhat flattened, and beau- 

 tifully ornamented with ramose lines; apex inclined laterally; diaphragm ovate, entire. 



C. ramosa, like its congener, C. costata, is common to the Meiocene of Virginia, and the 

 Pleiocene of South Carolina. 



Plate XXV. Figs. 5, Exterior and interior of shell, natural size. 



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



