OF CONCHOLOQY. 



DESCRIPTIONS OF NEW SPECIES OF EOCENE 

 FOSSILS.* 



BY R. P. WHITFIELD. 



The following species of fossils (except Columhella turricula 

 from Prof J. Hall) were received, among others, from Mr. T. 

 J. Hale, formerly of Madison, Wis., who collected them, seve- 

 ral years since, at the localities mentioned under the descrip- 

 tions. Finding them to be undescribed, and of interesting 

 forms, I have thought them worthy of notice. 



Genus PJSANIA, Biyon. 



PiSANiA Claibornensis, nob. — t. 27, f. 2. 



Description. — Spire short, broadly conical, consisting of 

 about five very ventricose volutions; body whorl produced 

 below, forming a short, somewhat twisted anterior canal ; aper- 

 ture large, obliquely oval, and forming, with the canal, rather 

 more than one-half the length of the shell; posterior canal 

 very small ; outer lip thickened, and crenulate ; entire surface 

 marked by distinct revolving lines; faint longitudinal folds 

 are visible on the three apical whorls, but are obsolete on the 

 larger ones. 



Dimensions. — Length '75 inch, greatest transverse diameter 

 •52 inch. 



Locality. — Claiborne, Alabama. 



PYRULA, Lam. 



Pyrula juvenis, nob. 



Description. — Shell small and fragile; spire elevated; col- 

 umella slender, slightly bent; aperture large, elongate, ovate 

 or sub-elliptical; volations three, marked on the periphery by 

 three distinct carinas or sub-angular revolving ridges, the upper 

 one marked with closely -arranged, longitudinally elongate 

 nodes, the others simple; entire surface marked by very fine 

 revolving lines, which are somewhat fasciculate below the 

 lower carina, there being three finer ones between each large 

 one. 



* I believe Mr. Conrad regards the Vicksburg beds as not belonging to 

 the Eocene proper, but calls them Oligocene. 



