GASTEROPODA OF THE LOWER GREEN MARLS. 55 
rather more than one-half the length of the entire shell, exclusive of the 
short beak; aperture oblique, angularly ovate; columella slender as shown 
by the cavity left by the removal of the substance of the shell; volutions 
marked by strong, oblique, vertical folds, which are distinct on the periph- 
eral angle, but do not extend much above or below, on the cast; strong 
spiral lines on some of the casts, eight to ten of which are seen on the ex- 
posed portion of the upper volutions, the number marking the basal por- 
tion of the body volution not being determinable. 
This species, although small, is distinguished from the associated 
species, and also from any of those from the western Cretaceous, by its pro- 
portionally more elevated spire and exsert volutions. It differs somewhat 
from most species of the genus in the proportions of the spire as compared 
with the length below the angle of the body whorl, being much longer 
above than below the point of greatest diameter. In this respect, as well 
as in its general size and appearance, it very closely resembles Turris 
(Surcula?) contortus M. & H., as figured,’ but is distinguished from that 
form by having the upper surface of the volutions distinctly convex instead 
of concave, while such slight indications of the transverse striz as are seen 
on some of the casts show that no slit or sinus of the lip existed, thus 
removing it definitely from that group of shells. 
Formation and localities: In the Lower Green Marls at Crosswicks, and 
from the Brown Marls of the same formation near Burlington, in the collec- 
tion Acad. Nat. Sei., Phila., and from sand under the Lower Marls at Mr. 
Backman’s pits at Middletown, New Jersey. In the collections at Rutgers 
College. 
PYRIFUSUS MEEKI, 0. sp. 
Plate Iv, Figs. 6, 7. 
Shell moderately large for the genus, having a diameter of nearly 14 
inches of the body whorl; subequally biconical in general outline; spire 
elevated, having an apical angle, as seen in the cast, of somewhat less than 
60°, with the spire slightly longer than the shell below, as viewed from 
the back of the last volution; volutions probably about four in number 
1U. S. Geol, Surv. Terr., vol. 9, Invert. Pal., Pl. xxx1, Fig. 7. 
