GASTEROPODA OF THE EOCENE MAELS. 213 



as V. mutataf Deshayes. Mr. Meek may have considered F. Sayana as 

 identical with the Paris Basin species, but they are very generally con- 

 sidered as being distinct, and there is certainly as much diiFerence between 

 them and any one of the French species as there is among those from that 

 locality described and given as distinct by Deshayes himself; consequently 

 I see no reason for suppressing the name V. Sayana. The species of Lea, 

 given above as synonyms, were described from young specimens. 



Formation and locality : This species was originally described from 

 specimens from the ferruginous sands at Claiborne, Alabama, but it has 

 been found at several other localities in that and the adjoining States. In 

 New Jersey I know it only from the Eocene layers of the Upper Marls, at 

 Shark River. 



VOLUTILITHES CANCELLATUS, 11. Sp. 



Plate XXX, Figs. 7-10. 



Shell of medium size, elongate-ovate in general outline, with a moder- 

 ately elevated spire consisting of three or more volutions in the cast; volutions 

 gently convex, rounded on the shoulder, largest above the middle, and the 

 body volution making the greater bulk of the specimen, forming fully two- 

 thirds of the height ; aperture long and rather narrow, somewhat contracted 

 below; columella slender, curved, marked by three, or perhaps in the larger 

 individuals four slender, oblique plicse or folds, the lower one the larger, and 

 situated rather below the middle of its length ; entire surface of the casts 

 marked by closely arranged spiral ridges, and also by transverse ridges of 

 growth, which are more or less fasciculate, which by crossing give a coarsely 

 cancellated texture over the body volution and over the exposed portions 

 of the others. The spiral ridges have their upper sides narrower than the 

 lower, giving a long and short side to each ridge, as have the ridges on 

 nearly all shells of this genus. The vertical ridges sometimes, on the older 

 individuals, form low vertical folds on the upper portion of the body volu- 

 tion, but this is not always the case. 



These casts might possibly be mistaken for those of V. Sayana, as the lat- 

 ter occur in the same beds, but not readily, as they differ much in form, being 

 more slender and more distinctly oval in outline ; also in the greater height 

 of the exposed part of the upper volutions; in the almost total absence of 



