968 PALEONTOLOGY OF NEW JERSEY. 
are found to present the small compound divisions seen in the larger speci- 
mens, although not so extreme. There can, therefore, be no real specific 
relation between the two in this respect, notwithstanding the great external 
resemblance. In the septa it more closely resembles S. hippocrepis De Kay, 
but if the diagram be compared with that of that one, it will be seen to be 
fundamentally so different that it could not be developed into it, besides 
the tube of this does not widen laterally on the outer chamber as does that 
one, neither is the ventral line of the horizontal portion widened as it is in 
S. huppocreprs. 
Formation and locality: The specimen comes to me associated S. hippo- 
crepis in the same tray, all of which are marked on the label “Cret. N. J 3) 
but the specimen of that species figured by Dr. Morton in his Synopsis, 
which is one of them, came from the deep cut of the Chesapeake and Dela- 
ware Canal, in Delaware, and as this is closely like it in lithological char- 
acter, it probably came from the same locality. . Collection of the Acad. 
Nat. Sci., Phila. | 
Genus TURRILITES Lamarck. 
TURRILITES PAUPER, 0. Sp. 
Plate xLv, Figs. 1-5.- 
A single fragment of a Turrilites, consisting of one and one-third volu- 
tions of a species with a very rapidly ascending ‘spire, has been observed 
among the New Jersey fossils. The coils of the spire are in close contact 
and the volutions are higher than wide, and show in the cast a moderately 
wide umbilical opening. The upper edge of the volution is angular where 
it unites with the one above, and within the angle the surface is concave 
where it has been in contact with the base of the coil above. The rest of 
the surface is rounded, and covered by oblique, bifurcating, or duplicating 
vertical folds or ridges, and is also marked by two lines of nodes, one at 
about the middle of the volution and another near the lower part. The 
nodes occur on almost every alternate ridge, though not invariably so, 
and those of the upper line of nodes are not on the same ridge as the 
lower line. The ridges are strongly directed forward as they cross the 
volution from above to the lower side of the volution, and are visible even 
within the umbilicus, although faintly so. 
