210 AMERICAN JOURNAL 



DESCRIPTIONS OF NEW EOCENE SHELLS, AND 



EEPERENCES WITH EIGUEES TO 



PUBLISHED SPECIES. 



BY T. A. CONRAD. 



MUREX, Lin. 



M. ENGONATUS.— PL 20, fig. 10. Foss. Shells of Tert. Form., 

 p. 30. 



M. Mantelli, Conr. — PI. 20, fig. 11. Journ. Acad. Nat. 

 Sciences, vol. vii., p. 154. 



M. Vanuxemi,* Conr.— pi. 20, fig. 4. 



Description. — Fusiform; volutions 5; those of the spire an- 

 gular in the middle, where there is a subspinose line, another 

 line of equal size revolves below with a fine intermediate line ; 

 longitudinal ribs on the body whorl 7 ; whorls of the spire 

 with close rugose revolving lines above the angle; body 

 whorl with revolving squamose ribs and an intermediate squa- 

 mose line; labrum thick, dentate within. 



Locality. — Claiborne. 



STREPSIDURA, Swainson. 



S. LiNTEA, Conr. — PI. 20, fig. 1. Amer. Journ. of Conch., 

 vol. i., p. 142. 



S. LAQUEATA, Conr. — PI. 21, fig. 1. 



Loca lity. — Claiborne. 



COCHLESPIRA, Conrad. 



C. ENGONATA, Conr. — PI. 21, fig. 12. Amer. Journ. of Conch., 

 vol. i., p. 142. 



G. BELLA, Conr.— PL 21, fig. 6. 



Description. — Fusiform, turrited, whorls 10, with an acute 

 reflexed subspinose carina, and crenulated revolving lines. 



Difiers from G. cristata, Conr., in having fewer and coarser 

 lines, and a more prominent carina. 



Locality. — Texas. 



* This shell is erroneously referred to Proceed. Acad. Nat. Sciences, 

 1864, in the Eocene Catalogue. 



