162 TALEONTOLOGY OF NEW JERSEY. 



Formation and locality: In the Lower Marl beds in Monmouth County. 

 Mr. Gabb's specimens were from Mulhca Hill, New Jersey, and there are 

 specimens in the collection Acad. Nat. Sci., Phila., from near Burlington, 

 New Jersey. 



CiNULIA OVOIDEA. 



Plate XX, Figs. 5, 6. 



AdcBon ovoidea Gabb : Proc. Acad. Nat. Sci., Phila., 1861, p. .319; Meek, Check 

 List Oret. and Jur. Foss., p. 17; GeoL, N. J., Newark, 1868, p. 728. 



Shell rather large, broadly ovoid or subglobose in general form, with a 

 moderately elevated spire, which is rounded rather than pointed; volutions 

 about four or perhaps four and a half, with distinctly marked sutures in the 

 cast ; body volution large, forming almost the entire bulk, and about nine- 

 tenths of the entire height of the shell, quite convex in the middle and 

 slightly pointed below, with a broad depressed, obscure furrow below the 

 top; aperture large, rather more than three-fourths as long as the principal 

 volution on the apertural side of the shell, pointed at the upper end, and 

 moderately increasing to below the middle of its length; obtusely pointed 

 below but wider than above. The columella has been strong, judging from 

 the size of the perforation left by its removal, and furnished with a single 

 moderately strong tooth near the middle, with an indistinct line below just 

 above the margin of the aperture ; surface of the shell marked, as obscurely 

 indicated on the cast, by a few rather broad spiral lines, the upper one on 

 one specimen ha\'ing quite a distinct depression below the upper margin, 

 except on the outer half of the last volution, and is probably the result of 

 accident. 



This species is most nearly related to Solidula hullata = Tornatellaf bul- 

 lata Morton, in size and general form. It is, however, somewhat more 

 erect, has a rather higher spire, coarser surface markings; is somewhat less 

 ventricose, has a stronger columella, which is marked by only a single spiral 

 ridge of less size than on that species. There is also no indication of the 

 extension upward of the last volution near the aperture, as shown on speci- 

 mens of that species, nor of any thickening of the outer lip. It is readily 

 distinguished from any of the others from. New Jersey except A. cretacea 



