﻿Notes on Tertiary Fossils, Bare, or Little Known. 155 



in the older Eocene, occurs at Bell's Landing, Ala., in the Lignitic 

 group, beautifully preserved, even showing the interior nacre. I 

 copy the figure 23a from Deshayes. Figure 23b is a specimen 

 from the Paris Basin. It is a well-known shell of the European 

 Eocene. 



Cassidaria carinata, Lam. PI. 3, figs. 19 a, b. Cassidaria nodosa, 

 Dixon. This species may be the same as described by Conrad 

 under the name of Galeodaria tricarinata, from Vicksburg. I have 

 a number of specimens in various stages of growth from Red Bluff, 

 Miss. 



Deshayes seems to have made several species of the varieties of 

 this shell, founded on the differences in the number of tuberculose 

 revolving lines, but the form of the aperture is precisely the same 

 through all my varieties ; the common form has three tuberculose 

 revolving lines upon the body whorl. This is a generic rather than 

 a specific peculiarity, according to Prof. A. Heilprin. The differ- 

 ences in Conrad's description are as follows: " Labrum profoundly 

 striate or costate within; columella with a deposit, and profoundly 

 rugoso-striate throughout." All my forms have the aperture 

 toothed above, smooth in the center, costate below. Figure 19 a 

 shows the largest specimen and the common form. 



Figure 19 b is the operculem which I was fortunate enough to 

 find with the shell. It is corneus, rounded above, angular below, 

 summit marginal, much smaller than the aperture. 



Aspergillum. Large specimens of a species of this genus are 

 in my cabinet, but too imperfect for description, the tubes only 

 being on hand. The largest fragment measures 5 t 2 q inches in 

 length and 1 inch in breadth. Locality, Wayne County, Miss., 

 Dr. Spillman. I have also two tubes from the Claiborne sand. 



The above notes are given with the hope of correcting some 

 errors, shedding light upon obscure forms and recording the Euro- 

 pean species mentioned. I propose to continue them in the 

 future with notes on synonomy. 



