GASTEKOPODA OP THE LOWER GREEN MARLS. 95 



TURRICULA SCALARIPORMIS, 11. Sp. 



Plate XI, Fig. !t. 



Shell greatly elongated, the spire being proportionally slender and 

 composed of numerous volutions, which are moderately convex, and mod- 

 erately increasing in height with additional growth; number unknown; 

 the specimen consists only of a portion of the spire containing about five 

 volutions, the apex and body volution being absent; surface marked by 

 strong vertical folds which are separated by concave, equally wide depres- 

 sions, quite straight and ridged in their direction from suture to suture, and 

 number about sixteen to each volution; folds crossed by spiral lines, about 

 eight of which can be counted on the exposed part of the volutions, and 

 raised and rounded on the top. 



This species differs from the others of the genus in the New Jersey 

 Green Sands in its more rounded volutions ; in the stronger vertical folds, 

 which are not flexuous between the sutures of the volutions and in the 

 existence of the spiral lines. In the character of the folds and spiral lines 

 the specimen presents something of the appearance of a Scalaria, but the 

 general features are those of a Mitra. The specimen is extremely imper- 

 fect, and only that it is desirable to include in the work all the species 

 known in the marls, it would not have been made use of 



Formation and locality: In the dark green marls of the Lower Green 

 Sand at Holmdel, New Jersey. From the collection of Rev. Mr. Reiley. 



CANCELLARIID^. 



Genus CANCELLARIA Lamarck. 

 Cancbllaria (mbrica) subalta. 

 Plate XII, Figs. 24, 25. 

 Cancellaria subalta Conrad: Am. Jour. Conch., vol. 5, p. 100, PI. ix. Fig. 22. 



Shell small, slender or elongate-fusiform, with an elevated spire com- 

 posed of moderately convex volutions, which may have been, as the author 

 says, six in number; sutures quite distinct; body volution proportionally 

 large, forming considerably more than half the length of the shell; aper- 



