47 



This interesting fossil, very characteristic of the Eocev.4 of the 

 environs of Paris, is equally so of the equivalent formation at 

 Claiborne, where it exists in all the varieties which M. Deshayes 

 has figured in his valuable work, " Fossil Shells of the environs 

 of Paris." 



SILIQUARI A VITIS. Tab. 17, fig. 2. 



Contorted, with longitudinal ribs becoming obsolete inferiorly ; 

 wrinkled transversely ; fissure inarticulate. 



Syn. S. CLAIBORNENSIS, Lea, Con. p. 33, pi. 1, /. 1. 



Locality. Claiborne, Alab. 



This shell is common at Claiborne, where I have seen it twelve 

 inches or more in length near the base of the arenaceous stratum, 

 but it was too friable to be extracted entire. I have a pair twisted 

 together, in the spiral portion, like two tendrils of a vine. This 

 shell has numerous thin vaulted septa. No. 3, first ed. p. 36. 



SOLARIUM ALVEATUM. Tab. 17, fig. 3. 



Discoidal, smooth, with two impressed lines near the suture, 

 which is profound ; periphery acutely angulated ; base flat with a 

 carinatod line and groove near the periphery ; umbilicus with con- 

 ical denticulations. 



//?*. S. BI.LINEATUM, Lea, Con. p. 119, pi. 4, f. 106. 



Locality. Claiborne, Alab. 



The most abundant species. No. 3, first ed. p. 31. 



SOLARIUM ELABORATUM. Tab. 17, fig. 4. 



Convex, with numerous crenulated unequal striae; periphery 

 acute ; beneath margined by a ridge and broad furrow, with near- 

 ly smooth revolving lines, except the three nearest the umbilicus, 

 which are crenulated and profound ; whorls within the umbilicus 

 with a carinated line in the middle. 



S. ELABOKATUM, American Journ. Science, vol. 23, p. 344. 



Locality. Claiborne, Alab. 



