116 PALEONTOLOGY OF NEW JERSEY. 
striction are neither figured nor mentioned. Still, a species constructed 
according to his figure and description would scarcely fail to possess them. 
On the New Jersey specimens they are very conspicuous, while in all other 
features the specimens correspond well. 
There is much variation among the different individuals before me, 
especially in the comparative increase in the diameter of the shell in pro- 
portion to its length, to the amount of nearly or quite one-fourth of the 
whole diameter; also in the proportional strength and size of the nodes 
above the sutural band and in the strength of the spiral lines. 
The aperture of the shell is narrow and elongated and equal to more 
than one-third of the entire length of the shell. The outer lip appears to 
have been thickened, although all the specimens are too imperfect for posi- 
tive statement. The inner lip has a decided callus at its upper end, while 
the notch is distinct but not deep. The longitudinal plicze are nearly verti- 
cal and on the body whorl extend to near the lower end. The spiral lines 
are numerous and mark the entire volution below the sutural band, but are 
often stronger on the lower part than above. 
Formation and locality: All the specimens of this shell observed from 
New Jersey are from the gray sandy Miocene marls at Jericho, and belong 
to the collections of the National Museum. 
DRILLIA SUBFLEXUOSA nl. Sp. 
Plate xx1, figs. 5-7. 
Shell small, slender, rather thick, with a turreted spire which forms 
about three-fifths of the entire length. Whorls convex, obliquely plicated, 
constricted above; constriction concave, forming about one-third of the 
exposed part of the volution. Plications very distinct and rounded, not 
extending below the middle of the principal volution. Aperture about one- 
third the length of the shell, narrow, terminating below in a short narrow 
canal; outer lip thickened, distinetly striated within, and deeply notched at 
the upper extremity; columellar lip callous at the upper end, striated below, 
and bent near the lower end. Surface marked by strong, elevated, spiral 
lines marking all the shell except the concave constriction at the upper side 
of the volution. 
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