222 PALEONTOLOGY OF NEW JERSEY. 



Formation and localittj : In the upper layers of the Upper Grreen Marls, 

 at Shark River, New Jersey. Collection at Rutgers College. 



STROMBID^. 



Genus CALYPTRAPHOEUS Conrad. 



Calypteaphorus velatus. 



Plate XXXIII, Figs. 23-27. 



Rostellaria velata Conrad: Foss. Shells Tert. Form., p. 31; 2d ed., p. 38, PI. XV, 



Fig. 4. 

 Rostellaria Lamarckii Lea: Contrib. to Am. GeoL, p. 158, PI. v, Fig. 164. 

 Mippocrenes columbaria ? (Defrance) Conrad : Check List Eocene, p. 13 ; Meek, 



Geol. N. J., Newark, 1868, p. 732. 

 Calyptraphorus velatus Conrad: Am. Jour. Conch., vol. 1, p. 31; Meek, Check 



List Eocene Foss., p. 13. 



Casts, which are unquestionably of this species, are not uncommon 

 among the Eocene fossils from New Jersey. The specimens present in the 

 internal casts and impressions of the exterior all the features recognized on 

 or presented by the Claiborne examples, and have the same size and relative 

 proportions of those shells; so that there can be no reasonable question 

 of their specific identity. The spire is elevated and presents an apical 

 angle of from 25° to 30*^, and consists of about eight volutions. This will 

 not include some two or three of the extreme upper whorls of the apex of 

 the shell which would not be preserved in the cast. The whorls are flat- 

 tened in the direction of the spire, and although the sutures are distinctly 

 marked, they are not deep or conspicuous. The anterior beak is not shown 

 to its full extent in any of the impressions, nor is the margin of the lip fully 

 represented; but enough of both remains to show their similarity to the 

 Clailjorne specimens. The spire has been coated to near if not quite to the 

 apex in one of the examples examined; while the posterior canal has ex- 

 tended at least to the top of the fourth volution, if it has not extended to 

 the fifth ; and has left a broad cicatrix marking the width of the callus bor- 

 dering the channel. On one or two of the fragments of the casts of the 

 spire the longitudinal or vertical folds of the upper volutions which charac- 



