270 NEW FOSSIL SHELLS 
sub-tuberculatis; costis longitudinalibus, sub-obliquis, magnis, rotundatis; anfractu ultimo rotundato; basi striis 
parvis, longitudinalibus; aperturd arctato-ovatd; columella rectd, crassd, politd, superne valde incrassatd; sino pro- 
fundo, lunato; canale brevi, inciso. 
Shell elongately fusiform, thick, glabrous, shining, imperforate, costate; spire attenuate, mamillate, smooth. at the 
apex; sutures flexuose, very small; whorls ten, angular near the middle, below convex and costate, above concave 
and subtuberculate; cost longitudinal, somewhat oblique, large, rounded; last whorl rounded ; base with small longi- 
tudinal strie; mouth narrowly ovate; columella straight, thick, polished, very much incrassated above; sinus deep, 
crescent-shaped; canal short, incised. 
Length 1.60, Breadth .50 of an inch. 
Remarks.—The upper concave part of the whorls, near the suture, has a series of indis- 
tinct tubercles, generally large and but very little elevated. The coste end a little below 
the middle of the last whorl, and the base is smooth, with the exception of a few longi- 
tudinal raised lines, and an indistinct oblique stria, which marks the growth of the canal. 
Behind the columella is a small groove, caused by its elevation above the neighbouring 
surface. The incrassation at the upper extremity of the columella forms a large callus, 
at the mouth of the sinus, and almost fills it up. This gives it its peculiar lunate ap- 
pearance. There is, properly speaking, no canal. The base of the mouth is deeply 
incised, as in the genus Oliva, without cutting off the end of the columella as is usual in 
this class of shells. 
This beautiful species agrees pretty well with the description and figure of P. limatula, 
Conrad, (Journal of the Academy, Vol. VI.) but is larger, tuberculate near the suture, 
and has the ribs more strongly developed. In addition to this, Mr. Conrad makes no 
mention of the peculiar lunate sinus which characterizes the shell now before us. 
GENUS FASCIOLARIA. 
F. parvu.a, Pu. 37. Fic. 94. 
F. testa fusiformi, crassa, imperforatd, nitente, sulcatd, striatd; spird elevatd, obtusd, ad apicem levi; suturis pro- 
fundis, arctatis; anfractibus septem, sub-convenis; sulcis longitudinalibus, magnis, crebris; striis transversis, parvis, 
raris; anfractu ultimo rotundato; basi profundeé striatd; aperturd longd, arctatd, supra aculé angulatd; columellié mul- 
tiplicatd, canale longo, profundo, sub-curvato. 
Shell fusiform, thick, imperforate, shining, sulcate, striate; spire elevated, obtuse, smooth near the apex; sutures 
deep, narrow; whorls seven, somewhat convex; sulci longitudinal, large, numerous; stria transverse, small, few; last 
whorl rounded; base deeply striate; mouth long, narrow, acutely angular above; columella with many folds; canal 
long, deep, slightly curved. 
Length .20. Breadth .08 of an inch, 
Remarks.—On the superior whorls there are three small transverse striate near the 
upper suture, which cross the sulcations. The one nearest the suture is the largest and 
deepest. On the last whorl the sulcations end about the middle, and then, after a narrow 
interval, commence deep transverse stric# which increase as they approach the base. The 
folds on the columella are but continuations of these strie. The aperture is very narrow 
and somewhat sinuous, gradually decreasing to the canal. The sutures are quite narrow 
and deep. 
GENUS FUSUS, 
F. pyemaus, Pu. 37. Fie. 95. 
. ‘ 4 , aA Saf) A \ A 5 4 
F. testé ovatd, sub-fusiformi, crassa, levi, politd; spird ovatd, valde obtusd, breviusculd; suturis linearibus; anfrac- 
tibus quatuor, planulatis; anfractu ultimo rotundato; basi levi; aperturd sinuosd, arctatd; columella angulatd; canale 
torto, longo. 
