260 AMERICAN JOURNAL 



Dimensions. — Length -6 inch, transverse diameter a little 

 less than 'S inch. 



Locality. — Six miles above Claiborne, Alabama, west side 

 of river, 



FULGUR, Montf. 

 FULGUR TRISERIALIS. 



Description. — Shell thin, clavate or pyriform; spire short, 

 consisting of four (or more) volutions, flattened above, and 

 produced below into a long, slender canal; marked on the 

 periphery or largest part of the volution by three rows of lan- 

 ceolate nodes or subspines, the upper one being the most promi- 

 nent; aperture large, elongate elliptical; canal straight; col- 

 umella slender and smooth; entire surface marked by sharp 

 revolving lines. 



Locality. — Nine miles below Prairie Bluff, Alabama. 



FUSUS, Lam. 



FUSUS TORTILIS. — t. 27, f. 5. 



Description. — Shell elongate-fusiform; spire slender, espe- 

 cially in the upper part, consisting of seven or eight sub-angu- 

 lar volutions, each marked by six strong longitudinal folds or 

 varices, which are spirally arranged, those of one volution 

 being a little behind the corresponding one of the preceding 

 volution, the whole making about one-fourth of a turn in the 

 length of the spire ; canal long and straight, making, with the 

 narrow ovate aperture, rather more than one-half of the entire 

 length; surface marked by somewhat alternating revolving 

 lines, strongest on the largest part of each volution. 



Dimensions. — Length 1*75 inches, transverse diameter "7 inch. 



Locality. — Nine miles below Prairie Bluff, Alabama. 



PSEUDOLIVA, Swainson. 



PSEUDOLIVA ELLIPTICA. 



Description. — Shell small, broadly elliptical; spire produced 

 above, pointed; volutions four or five, rounded on the sides, 

 the largest slightly inflated ; suture close, bounded by a nar- 

 row band below; columella a little twisted, and flattened in 

 the lower part; aperture wide, a little more than half the 

 length of the shell, pointed above and deeply notched at the 

 base; a very faint revolving groove at the top of the anterior 

 third of the body volution, marking the place of the very 

 small tooth-like projection on the outer lip; surface smooth, 

 except a rather broad band near the base of the last volution 

 formed by the siphonal notch. 



Dimensions. — Length | inch, transverse diameter f inch. 



Locality. — Vicksburg, Miss. Upper Eocene. 



