144 PALEONTOLOGY OF NEW JERSEY. 
by Col. T. M. Bryan; several others are from Upper Freehold. They are 
probably from the Lower Marls, but Dr. Morton's specimen is of a rusty 
character, unlike any other which I have seen, and appears as if it had 
been imbedded in a ferruginous clay. A large slab, of limestone bearing 
very many examples of this species as partial casts, but retaining something 
of the surface markings, has recently been obtained from the clays at Say- 
ersville, New Jersey, by J. H. Conger, esq. 
TURRITELLA ? GRANULICOSTATA. 
Plate xvi, Figs. 10, 11. 
Turritella granulicostata Gabb: Proc. Acad. Nat. Sci., Phila., 1861, p. 363; Meek, 
Check List Cret. and Jur. Foss., p. 18; Geol. N. J .. Newark, 1868, p. 729. 
The following is Mr. Gabb’s description of this shell: 
Shell elongated, whorls many, increasing very gradually in size, almost per- 
fectly flat on the sides. Suture impressed, very distinct; bordered below by a 
slight elevation of the upper edge of succeeding whorl; lower angle of the whorl 
rounded, subangular. Mouth small, subquadrate; anterior angles rounded. Sur- 
face marked by about twelve fine, thread-like revolving ribs, three of which are 
larger than the rest, are placed at equal distances from each other, and from the 
upper and lower edges, and are slightly undulated so as to produce aseries of mi- 
nute nodes. This character shows itself to a much less extent on some of the 
smaller ribs. Under surface of the body volution marked by a few fine revolv- 
ing ribs, with regular concavities between them, 
This fragment, consisting of nearly four volutions, is all that is known 
ot the species. The casts referred to by Mr. William Gabb may or may 
not belong to the same; we certainly do not know the casts of this one 
authentically. The surface markings are rather those of a species of Cerith- 
wm than of a Turritella, but the mouth is mutilated, so that its features 
can not be satisfactorily determined. 
Formation and locality: In the Lower Green Marls, most probably in 
Burlington County, New Jersey. The specimen is now in the collection 
of the Acad. Nat. Sci., Phila. 
