OP CONCHOLOQY. 211 



TORTOLIVA, Conrad. 



T. Tex ANA, Conr.— PL 21, fig. 4. Amer. Journ. of Conch., 

 vol. i., p. 143. 



L^VIBUCCINUM, Conrad. 



L. PRORSUM, Conr.— PI. 20, fig. 17. Fossil Shells of Tert., p. 

 45. 



BUCCITRITON, Conrad. 



B. ALTUM, Conr.— PI. 21, fig. 9. 



Description. — Ovato-conic; volutions 6 or 7; spiral whorls 

 indented above, convex beneath, with 2 or 3 distant varices; 

 a crenulated revolving ridge below the suture; back of body 

 whorl cancellated; basal margin projecting beyond the colum- 

 ellar base; labium strongly striated; labrum reflexed with 6 

 transverse plaits; nuclear whorls entire. 



Locality. — Texas. Dr. Francis Moore. 



VOLUTILITHES, Swains. 



V. INDENTA, Conr.- PI. 21, fig. 10. Amer. Journ. of Conch., 

 vol. i., p. 144. 



V. IMPRESSA, Conr.— PI. 20, fig. 3. Ih., p. 144. 



LUNATIA, Gray. 



L. Marylandica, Conr. — PI. 21, fig. 11. 



Description. — Suborbicular or subovate, volutions 5 ; spire 

 short, whorls convex, subcontracted below the suture; labium 

 with a callus on the upper part, reflexed over the umbilical 

 margin; umbilicus moderate in outline, profound, showing most 

 of the volutions. 



CIRSOSTREMA, Morch. 



C. Claibornensis, Conr. — PI. 20, fig. 12. 



Description. — Whorl with profoundly elevated acute reflexed 

 ribs; interstices with revolving, large, intermediate, fine strise 

 extending to the base. 



Locality. — Claiborne, Alabama. 



OBELISCUS, Humphrey. 



0. PEREXiLis, Conr. — PI. 20, fig. 2. Amer. Journ. of Conch., 

 vol. i., p. 144. 



CANCELLARIA, Lam. 



C. TORTiPLicA, Conr. — PI. 21, fig. 8. Amer Journ. of Conch., 

 vol. i., p. 145. 



