Bulletins of American paleontology . )ondcranco of the body whirl over the short (h.|)res!--e*i-pirc. The aperture is long and narrow, and the outer lip i-notched near its suture. CONrS ADVERSARirS—COX. -(Fig. 142.) biiell conical and turned to the left; the surhicc is markcoby revolving lines ; towards the face of the pillar lip the linesare strong ; whirls of the spire rather concave; edges sub-carinated ; labrum sharp, edge convex, and forming a sinusnear the suture. Common in all the marl, beds upon tlxNeuse and Cape Fear rivers. CONUS DILUIVIANUS.—(Fig. 143.)Shell conical, much smaller th


Bulletins of American paleontology . )ondcranco of the body whirl over the short (h.|)res!--e*i-pirc. The aperture is long and narrow, and the outer lip i-notched near its suture. CONrS ADVERSARirS—COX. -(Fig. 142.) biiell conical and turned to the left; the surhicc is markcoby revolving lines ; towards the face of the pillar lip the linesare strong ; whirls of the spire rather concave; edges sub-carinated ; labrum sharp, edge convex, and forming a sinusnear the suture. Common in all the marl, beds upon tlxNeuse and Cape Fear rivers. CONUS DILUIVIANUS.—(Fig. 143.)Shell conical, much smaller than the preceeding, and tinwhirls are turned to the right; surface markings the samethe revolving lines are less oblique than in the C. adversariu^ North Carolina Geol. Sur.: Emmons264: nortir-cakolina geologicai. sukvey, 173 They are associated together in about equal numbers. Neitherspecies are found in older beds. Fig. 142. Fig. 130. Fig. Fig. 144. ^^rA LrXATUlM. LEA. TUIJIMS LTXAITM. FOSSILS OP —(Fig. 144:.)Shell thick, elongate, acute, snbfusiform; strongly and)bliquely ribbed; ppire, eight whirled, angulated above andornamented by a narrow sutuial band. The upper part of the whirls are construct-ed so as to present to the eye a nai-row spiralband. liather common in the marl of CapoFear river, PLEUK0T0:\rA LIMATULA. COX. (Fig. 145.) Shell rather small, sub-fusiform; spire com-posed of live or six whirls ; whirls constrictedabove and sub-angulated, forming a suturalspiral collar; ribs oblique and coarse. It isabout one inch long. PLEUKOTOMA COMMUNIS.—CON. Shell small, sub-fusiform ; whirls about six, indistinct; body-whirl traversed spirally by four other sharp ridges.


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