MIOCENE MOLLUSCA AND CRUSTACEA. 
a Aperture about one-third the length of the shell; canal slightly 
deflected, columellar lip well defined. 
“Length slightly exceeding a half inch.” (Heilprin.) 
This species closely resembles Pleuvotoma elegans Kmmons, Geol. Surv. 
N. Car., 1858, p. 265, fig. 146, but is more slender, more obsoletely striate, 
and has the aperture much shorter in proportion to the entire length of the 
shell. Prof. Heilprin describes it as having ‘no revolving lines.” On most 
of the specimens in hand there are fine spiral lines near the base of the shell 
distinctly visible under a glass, but not to the naked eye. 
Locality and position: In the gray sandy marls of the Miocene at both 
Shiloh and Jericho, N. J. From the collection of the National Museum, and 
in that of Miss Mary 8. Holmes, of Philadelphia, the latter one being: the 
type of the species, but received too late to figure. 
Genus DRILLIA Gray. 
DRILLIA ELEGANS. 
Plate xXx1, figs. 2-4. 
Pleurotoma elegans Emmons: Geol. Surv. N. Carolina, 1858, p. 265. 
Drillia elegars (Emmons) Conrad: Proc. Acad. Nat. Sci. Phila., 1862, p. 562; Meek, 
Check List Miocene Foss., p. 21. 
“ Shell small, subturreted; whorls about nine, constricted above, orna- 
mented by numerous longitudinal ribs, and traversed by many fine raised 
spiral lines, which become very distinct upon the pillar lip. 
“The spiral lines are very regular and equidistant The body whorl 
has about sixteen ribs.” 
I have not seen the type specimens of the above species and am only 
able to judge of its characters from the figures given and the description 
which accompanies it, consequently can not positively affirm that the speci- 
mens which I here refer to it are specifically identical. Still I think there 
is no reasonable doubt of the correctness of the reference. The features 
described by the author are, perhaps, a little more pronounced on the New 
Jersey specimens than they would appear to have been on the specimens 
which he figures, while the line of nodes occurring above the sinus con- 
