108 PALEONTOLOGY OF NEW JERSEY. 
less likely to cause confusion. His specimens have been very much more 
robust in the spire, which is much longer than these when perfect and 
not so attenuated; nor do the inner volutions of this shell ever present 
the vertical portion of the volution to view, as shown both in the original 
and later figures given of that species. I think, however, that they are 
generically identical, and should prefer to place them as a division of Bullia 
rather than with Melanopsis, as was done both by Mr. Conrad and Mr. Tryon. 
But I see no reason why they should not be included under Dr. Orbigny’s 
genus Buccinanops. 
Formation and locality: Quite a large number of the shells were obtained 
from an artesian-well boring at Cape May, N. J., at a depth ranging from 
320 to 350 feet from the surface. They are associated with Terebra and 
Tritia trivittatoides, var. elongata, herein described, and are from the collections 
at Rutgers College. 
Family MARGINELLID4®. 
Genus ERATO Risso. 
ERATO EMMONSI 0. 8. 
Pl. x1x, figs. 9-11. 
Erato levis ? (Loven), Emmons: Geol. South Carolina, 1852, pp. 261 and 262, fig. 139. 
Erato (?) levis (Emmons), Conrad: Proc. Acad. Nat. Sci. Phila., 1862, p. 564; Meek 
Check List Miocene Foss., p. 19. 
Not Hrato levis, Loven’s species. 
Marginella sp.?, Heilprin: Proc. Acad. Nat. Sci. Phila., 1887, p. 404. 
Shell small, strongly obovate, swollen or inflated above, and contracted 
in the lower part; spire short or very obtuse, slightly coated so as to render 
the suture indistinct; aperture narrow, not quite as long as the body of the 
shell. Outer lip thickened outwardly and in the medial portion of its length 
on the inside and below, but scarcely so above; strongly crenulated over 
all the thickened parts, bearing ten distinct ridges on the only perfect 
example seen. Inner lip bearing four distinct ridges or teeth, the lower 
one of which is the most distinct. The surface of the shell has been pol- 
ished when perfect. 
Dr. EK. Emmons referred this species to H. /evis from the inspection 
