128 TALEONTOLOGY OF NEW JERSEY. 



Fanaily TURRIT EI.LID.^. 

 Uemis TUKBITELLA Lfimarck. 



TURRITELLA -EQtllSTRlATA. 



Plate xxm, figs. 12-14. 



Tiirritelht (eqidstnata Gonrnd; Proc. Acad. Nat. Sci. Phila., 1862, p. 584; Cat. Mioc. 

 Foss. Atlantic slope, in Proc. Acad. Nat. Sci., 1862, p. 667; Meek, Check List 

 Miocene Foss., p. 16. 



"Subulate, volutions fourteen, bicarinate, carina distant with a con- 

 cave interval, the lower carina near the suture; surface covered with nearly 

 equal fine closely-arranged striae, with a minute intermediate line; aperture 

 longer than wide." 



The above is Mr. Conrad's description of this species. The shell is 

 extremely \arial)le in tlie rate of increase in size in different individuals, 

 and also somewhat so in the general expression of the volutions, owing to 

 the comparative distance between the two principal carina, and their dis- 

 tance from the suture. But they all agree by having the carinte much 

 nearer the lower part of the exposed surface of the volution than to the 

 upper, which gives a long slope from the upper one to the sutin-e line above; 

 usually greater than the distance between the two carinoe ; while the space 

 below the lower carina is not more than half as wide as that between the 

 carhins. In the fine lines covering the surface they are very uniform, 

 althougli tlie small intermediate line does not always appear. The lower 

 edge of the volution is either obtusely carinate or rounded, and the lo^\ er 

 surface covered with fine lines, as is the surface. In older shells the carinoe 

 are less distinctly marked. The aperture is subquadrate and the apex, as 

 seen in very ])erfect specimens, would appear to have been open and filled 

 from within. 



Loralifii's: iVll tlic specimens yet seen have been from Shiloh, N. J. 

 Mr. Com-ad's types were from the same place. Collections at Rutgers Col- 

 lege, N. J., and National Museum, Washington, D. C. Mr. Meek gives it 

 as from North Carolina. 



