238 PALEONTOLOGY OF NEW JERSEY. 



inch in length, with a transverse diameter at its widest point equal to about 

 one-half the length, the specimen being very slightly compressed. Spire 

 elevated, three volutions being preserved in the cast above the body whorl; 

 volutions ventricose, rounded, the last one measuring about three-fifths of 

 the entire length; aperture elongated, elliptical in outline; columella mod- 

 erately long, curved, marked by a single fold in its lower part. Surface of 

 the cast marked by proportionally strong impressed lines, leaving rounded 

 ridges between; no evidence of punctse in the lines can be detected, either 

 on the cast or in the matrix, although they may have existed on the shell. 



This species is rather uncommon in the marls of New Jersey, for 

 among all the shells and casts of this formation which have come under 

 my observation only a single specimen, and that the type used by Mr. 

 Conrad, has been observed. It is readily distinguished from any of the 

 Cretaceous species by its general form and height of spire. Mr. Conrad 

 did not remove the specimen from the matrix, consequently did not find the 

 fold on the columella, and referred it to his genus Actaonema. (See obser- 

 vations on that genus.) 



Formation and locality: In the stony layers at the top of the Upper 

 Green Marls (Eocene), at Shark River, New Jersey. Rutgers College col- 

 lection. 



Genus TORNATELL^A Conrad. 



TORNATELL^A LATA. 



Plate XXXVI, Figs. 9, 10. 



TornatellcBa lata Conrad: Am. Jour. Conch.., vol. 1. p. 313, PI. xx, Fig. 13. 



Shell of medium size, ventricose or broadly ovate in outline, spire 

 short, the outer volution forming the principal part of the shell; volutions 

 ' about four in the cast, rounded, with distinct sutures ; aperture rather large, 

 more than half as long as the entire shell; columella short, apparently 

 straight and marked by two distinct and rather distant folds, one at the 

 base, the other near its upper part; sm^face of the shell and cast marked by 

 strong, impressed, spiral striae, with romided ridges between. There appears 

 to have been punctse in the depressed lines, but the evidence of this is not 

 quite satisfactory. 



