B U C C I N I D M . 75 



sublimate, whitish spots and sometimes a third at the base ; suture not deeply impressed ; 

 labrum dentate on the inner sub-margin, the superior teeth more prominent; labrum with 

 the plate not thickened. 



This is a common but variable shell, from Cape Cod southward. In the Post-Pleiocene 

 it is often found with the spots well preserved. 



Professor Adams, in his " Observations on the Marine Shells of Massachusetts,'" remarks : 

 "The coloring in this species varies much in different individuals. Some are of a 

 uniform, very deep brownish-red, and others are of a paler shade of the same color; but 

 the arrangement of colors described in the Journal of the Academy (by Say) is a type of 

 which most of the varieties are modifications. The sub-lunate whitish spots are so much 

 enlarged as to constitute the ground color of the shell, being separated only by narrow, 

 undulate longitudinal lines of brown, while the revolving stripes of brown which usually 

 separate them into two or three series are wanting." 



Plate XII. Fig. 5, Natural size. 

 " 5a, Magnified. 



Locality. Simmons'; Stono River; Cainhoy. 



Museum, College of Charleston; Cabinet F. S. H. 



STREPHONA.— Browne. (1756.) 

 OLIVA.— Lam. (1801.) 



STREP HON A LITER AT A.— Tdomey & Holmes. 



Plate XII. Pre. 1. 



Oliva literata, Lam., Anim. sans Vert., Vol. 10, p. 614. 



Oliva literata, Say, Amn. Conch., pi. 3. 



Oliva literata, Say, Conch. United States, ed. Binney, p. 152, pi. 3. 



Oliva literata, Ravenel, Cat. Coll. Shells, p. 19. 



Oliva literata, L. R. Gibbes, Tuomey's Geol. So. Ca., appendix, p. xxi. 



Oliva literata, Be Kay, Zool. New- York, Art. Mollusca, p. 152, pi. 7, fig. 157. 



Strephona literata, Tuomey <%■ Holmes, Pleiocene Foss. So. Ca., p. 140, pi. xxviii, fig. 13. 



Utriculina literata, H. $ A. Adams, Gen. Mollusca, Vol. 1, p. 141. 



Description. Shell cylindrical, thick, smooth ; spire exserted, acute ; whorls angular, 

 carinated at the superior margins ; suture deeply grooved ; labrum acute, simple, smooth ■ 

 labium sometimes with many oblique folds ; aperture linear, incised above, emarginate 



