84 PALEONTOLOGY OF NEW JERSEY. 



and equally so from any form of Cone. I know of no Cretaceous species 

 with which it presents close affinities. 



Format 10)1 and hicalif//: In lje<ls of the Lower Green Marls at Mr. C. 

 Bruer's pits, near Walnford, New Jersey. 



VOLUTIDJE. 

 Genus VOLUTA Lamarck. 



VOLUTA ? DeLAWARENSIS. 



Plate X, Figs. 5-7. 



Vuluta Delawarensis Gabb : Proc. Acad. Nat. Sci., Phila., 1861, p. 322. 

 Voluta? Delawarensis (Gabb) Meek: Check List Cret. and Jur. Foss., p. 21. 

 VolutomorpJia Delawarensis Gabb: Proc. Acad. Nat. Sci., Phila., 1876, p. 290. 



Shell above a medium size, very ventricose and ponderous in charac- 

 ter; height of shell and transverse diameter nearly equal, or higher than 

 wide; spire low conical, the entire shell consisting of about four volutions; 

 those of the spire convex, and the last one angulated^ above and truncated 

 below; round ventricose, or short pyrifonn on the inner half, but becoming 

 more and more angulated, and sometimes quite angular above toward the 

 aperture, with the summit slightly concave; columella twisted, so far as 

 can be determined from the casts examined; aperture large, subangular 

 above and broad below, with apparently a wide and deep anterior channel; 

 surface of the volutions marked by strong, distant, node-like elevations on 

 the upper part, which are extended below in the form of irregular vertical 

 folds, visible to near the base of the volution. 



Mr. Gabb describes the columella as having a single heavy oblique 

 fold, which I have not seen. The shell, as shown by the casts, is almost a 

 counterpart of the living Voluta (Gymhiola) Braziliana Solander (== V. Cola- 

 ci/nthus Chemn.) from the southern Atlantic coast, except that the upper 

 volutions are more elevated and ventricose. Mr. Gabb^ cites this as a 

 species of VolutomorpJia, but it can not be possible that it is congeneric with 



'Proc. Acad. Nat. Sci., Phila., 1876, p. 290. 



