114 PALEONTOLOGY OF NEW JERSEY. 



Terebra INORNATA, II. sp. 

 Plate xx, figs. 11-13. 



Shell below medium size and very slender, consisting of twelve or 

 more volutions; spire attenuated; volutions sloping abruptly for about one- 

 third of their exposed surface below the suture, below which point their 

 sides are vertical, parallel, and destitute of ornamentation other than fine 

 lines of growth, except on a few of the apical volutions; where, when per- 

 fect, there are faint vertical ridges; aperture narrow, elongate, forming 

 about three-fifths of the height of the body volution at its margin; outer 

 lip thin and sharp; columella twisted, slightly excavated on its face, and 

 marked by a thickened spiral rib near the base; channel slight. 



A number of this species have been obtained, but are mostly corroded 

 and dissolved by the action of water, so that all the upper volutions 

 have been destroyed; in which condition they are more rapidly tapering 

 and present a less number of volutions. In fact most specimens present 

 none of the original surface, except on the lower one or two volutions. It 

 differs in its surface characters from any known species, in the sloping of 

 the upper third of the exposed part of the volution, and the vertical space 

 below, and in want of ornamentation.. - 



Locality and formation: Obtained from a well-boring at Cape May, N. J., 

 at a depth of from 320 to 360 feet. From the collection at Rutgers College, 

 New Brunswick, N. J. 



Family PLEUROTOMID.E. 

 Genus PLEUROTOMA Lamarck. 



Pleurotoma (Drillia) pseudeburnea. 

 Plate xxi, tigs. 8-12. 

 Pleurotoma pseudeburnea Heilprin: Proc. Acad. Nat. Sci. Phila., 1887, p. 404. 



" Spire elevated, of about ten volutions; apex papillated; whorls con- 

 vex, porcellanous, strongly ribbed, somewhat impressed on the shoulder; 

 ribs numerous, deflected, those of the several whorls alternating in position. 

 No revolving lines. 



