74 PALEONTOLOGY OF NEW JERSEY. 



VOLUTOMORPHA (PlESTOCHILUS) BELLA. 



Plate VI, Figs. 15-18. 



Vohiiilithes bella Gabb : Jour. Acad. Nat. Sci., 2d ser., vol. 4, p. 300, PI. xcvill, 



Fig. 7 ; Synopsis, p. 93. 

 Rostellites bella (Gabb) Meek, Check List Cret. and Jur. Foss. , p. 21 ; Geol. N. J. , 



Newark, 1868, p. 729. 

 Fulguraria bella Gabb: Proc. Acad. Nat. Sci., Pliila., 1861, p. 364. 

 Volutomorpha bella Gabb: Proc. Acad. Nat. Sci., Phila., 1876, p. 293. 



Shell, as shown by the cast, elongate, fusiform, and slender, with mod- 

 erately full volutions and distinct suture lines; spire short, the body volu- 

 tion as viewed from the front forming from three-fourths to four-fifths of 

 the entire length, and the narrow, anteriorly prolonged aperture more than 

 one-half of the length; volutions four or more in number, the last one 

 most ventricose above the middle of its length and narrowed and prolonged 

 below; columella showing two strong oblique folds at about the middle of 

 the aperture; surface unknown. 



This species is the most slender form of the genus, except F. mucronata 

 Grabb, and may be readily distinguished from that one by the greater 

 length of the spire and proportionally shorter aperture of that species. I 

 have not been able to identify any other specimen of this species than the 

 type specimen. It is certainly a species distinct from any other described, 

 and must be a comparatively rare form. 



Formation and locality: The specimen is composed of a hard black 

 marl resembling that from the Lower Marl Beds in many places in Mon- 

 mouth County, New Jersey, and is said under the original description to 

 have come from the Delaware and Chesapeake Canal. On the label accom- 

 panying the specimen, written by Mr. Gabb, is marked "Cret. N. J." 



