202 PALEONTOLOGY OF NEW JEESEY. 



sixteenths of an inch broad where broken. Figures of the specimen are 

 given to aid in its identification, although so highly imperfect. 



Formation and locality : In the upper layers of the Upper Green Marls 

 at Shark River, New Jersey. From the collection at Rutgers College. 



FASCIOLARIIDJE. 



Genus FASCIOLARIA Lamarck. 



Fasciolaeia Hercules. 



Plate XXVI, Figs. 9-11; Plate xxvii, Figs. 1, 2. 



Shell large, heavy, and apparently ponderous. Spire elevated and 

 strong, the apical angle on uncompressed specimens being about 45° or 

 50° ; volutions about seven, strong, subangular above the last one, which 

 is biangular, the lower angle being concealed on the others by the volu- 

 tion below; each volution marked by a series of twelve strong, rounded, 

 node-like vertical ridges along the angle, and dying out below at the suture 

 line; periphery of the last volution vertical between the angles, and rap- 

 idly contracted in the lower part to fonii the long, comparatively strong 

 anterior beak, which is nearly or^uite as long as the height of the spire 

 above the middle of the last volution; columella straight to near its extrem- 

 ity. Only a single, rather slender, oblique fold has been observed on any 

 of the many specimens examined. Aperture comparatively small, wider 

 than high, subangular at the upper outer part and rapidly rounded inward 

 to the beak and narrow canal below ; surface, as indicated both by the casts 

 and matrix, covered by low spiral striae, those crossing the tops of the 

 nodes being the strongest and most distant; those on the lower part of the 

 body volution are not distinct enough on any of the casts to reveal their 

 true character. 



This shell has been very closely related to some forms of the living 

 shells refeiTed to Fasciolaria trapezium Linn., and very closely resembles 

 that known as F. Audouini Jonas, usually found in collections under the 

 first named species. The spire is, however, somewhat more elevated than 

 in that one, and the anterior beak somewhat more slender. The single 



