GASTEROPODA OF THE EOCENE MABLS. 239 



This shell differs from T. prisca Con., found associated with it, in its 

 shorter and more ventricose form, shorter spire, and in the possession of two 

 distinct columellar folds, instead of only one as in that species. The spiral 

 lines are also somewhat more distant on the only specimens seen. The 

 specimens agree very closely with Mr. Conrad's figure cited above, differ- 

 ing only in the very slightly greater elevation of the spire in the casts 

 This, however, would naturally occur in the cast, although the number of 

 volutions is usually less, as they are generally slightly longer. Mr. Cdn- 

 rad's specimen was doubtfully from Alabama, and preserved the shell sub- 

 stance. 



Formation and locality : In the stony Eocene layer of the Upper Green 

 Marls, at Shark River, New Jersey. Rutgers College collection. 



Genus TORNATINA Adams. 



TORNATINA WeTHBRELLI. 



Plate XXXVI, Fig. 11. 



Actceon Wetherelli Lea: Cont. to GeoL, Phila., 1833, p. 313, PI. vi, Fig. 334. 

 Tornatina Wetherelli (Lea) Conrad: In Am. Jour. Conch., vol. 1, p. 35. 



I have not seen this shell, nor any representative of it, so give Mr- 

 Lea's description below, and copy his figure. The description is as follows: 



"Shell cylindrical, truncate above, smooth; substance of the shell 

 somewhat thick ; spire short and truncate ; suture impressed ; columella with 

 one fold; whorls four; mouth narrow, about four-fifths the length of the 

 shell ; outer lip simple ; length nearly 0.2, breadth 0.1, of an inch." The local- 

 ity assigned to the specimen is "Deal, New Jersey." In Mr. Conrad's list 

 he gives.it as from "Claiborne," Alabama, but I presume Mr. Lea under- 

 stood full as well whence he obtained it, though no shells in that condition 

 have been obtained from Deal so far as I know. 



