696 CRETACEOUS PALEONTOLOGY. 



1898. Turritella quadrilira Johns., Proc. Acad. Nat. Sci. Phil. 



(1898), p. 463- 

 1905. Turritella quadrilira Johns., Proc. Acad. Nat. Sci. Phil. 



(1905), p. 21. 



Description. Apical angle about 20 ; the figured specimen is 

 the apical portion of a shell 19.5 mm. in length, with a maximum 

 diameter of 8 mm., showing nine volutions. Suture situated a 

 little above the middle line of a broad, smooth, depressed, con- 

 cave channel whose lower slope is less abrupt than the upper, 

 and whose width is more than one-half the width of the elevated 

 portion of the volutions. Surface of the volutions between the 

 sutural depression, a little convex and marked by four strong, 

 angular, revolving ribs, the uppermost of which is slightly smaller 

 than the others; the interspaces between the ribs are broader 

 than the ribs themselves, smooth and rounded in the bottom. 



Remarks. This species has a slight resemblance to T. tri- 

 costata from the Wenonah sand, but so far as known, it is a 

 much smaller shell with a somewhat greater apical angle. If it 

 should be found, however, growing to so large a size as the 

 Wenonah species, it can be easily distinguished by its four re- 

 volving ribs and the convex surface of the volutions between 

 the sutural depressions. 



Formation and locality. Cliffwood clay, Cliffwood Point 

 (105), near Matawan (107) ; Woodbury clay, near Matawan 

 (103), deep well at Mount Laurel (Johnson). 



Geographic distribution. New Jersey. 



Turritella ? granulicosta Gabb. 

 Plate LXXIX., Figs. 15-17. 



1861. Turritella granulicosta Gabb, Proc. Acad. Nat. Sci. Phil. 



(1861), p, 363- 

 1864. Turritella granulicostata Meek, Check List Inv. Foss. N. 



A., Cret. and Jur., p. 18. 



1868. Turritella granulicostata Con., Cook's Geol. N. J., p. 729. 

 1892. Turritella ? granulicostata Whitf., Pal. N. J., vol. 2 



(Monog. U. S. G. S., vol. 18), p. 144, pi. 18, figs. 



10-11. 



