142 AMERICAN JOURNAL 



DESCEIPTIONS OP NEW EOCENE SHELLS OP THE 

 UNITED STATES. 



BY T. A. COXRAD. 



STREPSIDURA, Swainson. 

 S. LIXTEA, nob. h (■' "^ ^ 



Description. — Ovate-acute ; spire scalariform, consisting of 

 five angular volutions ; strias rugose, prominent and coarse 

 below the angle of the volutions and bodv whorl, fine on 

 the space above ; longitudinal ribs acute, prominent, distant, 

 obsolete or wanting on the back of the bodj whorl ; beak 

 very short, recurved. 



Length f inch. 



Locality. — Claiborne, Alabama. 



SURCULA, Adams. 



S. Gabbii, nob. — pi. 11, fig. 5. 



Description. — Fusiform; volutions eight or nine, convex and 

 subangulated beneath and indented above, with fine revolving 

 lines, the indented space angular above, between which 

 ano-le and the suture the strias are largest; this indentation 

 has minute, very close-arranged revolving lines; body volu- 

 tion with numerous rugose alternated lines, obsolete on the 

 upper part of the volution ; beak long and straight. 



Locality. — Texas. 



S. LINTEA, nob. 



Description. — Turrited ; volutions ten. subangulated sub- 

 mediallv, with a prominent revolving line on the angle ; lower 

 half of volutions salient and obscurely costate ; revolving wrin- 

 kled lines on all the whorls, except three, from the apex ; five of 

 these on the penultimate volution below the prominent line on 

 the ano-le, which is situated above the middle of each volution 

 body whorl obscurely costate on the shoulder, and having re 

 volving, unequal lines nearly to the extremity of the beak 

 lines about eighteen in number below the summit of the aper- 

 ture. 



Locality. — Claiborne. ? 



COCHLESPIRA, Conrad. 

 C. ENGOXATA, nob. {= ■ I : j-^j ^ ■ 



Description. — Fusiform ; spire elevated, whorls seven, terebri- 

 form, with minute, wrinkled, revolving lines, obsolete above 



