834 CRETACEOUS PALEONTOLOGY. 



outer side of the U-shaped tube; often in the space between the 

 rows of nodes the ribs are more or less obsolescent. Sutures 

 essentially unknown. 



Remarks. The fragmentary condition of all the examples of 

 this species which have been observed makes it very difficult to 

 determine just what its form has been; if all the parts which 

 have been observed really belong to a single species it must have 

 been very variable in the curvature of the shell and in the orna- 

 mentation. The type of the species is a nearly complete spiral 

 coil, but most of the later specimens which have been collected 

 are U-shaped. The species was doubtless one which passed 

 through several distinctly different forms of growth and cur- 

 vature, being similar in this respect to the H. simplicostata 

 Whitf., already mentioned. The species is perhaps really more 

 closely allied to H. angulatum M. & H., 1 than to any other, but 

 this species also is known only from fragments 



Formation and locality. Navesink marl, Atlantic Highlands 

 (108). 



Geographic distribution. New Jersey. 



Family TUBBILITIDAB. 



Genus TURRIUTES Lamark. 



Turrilites pauper Whitfield. 



Plate CVIIL, Figs. 1-4. 



1892. Turrilites pauper Whitf., Pal. N. J., vol. 2 (Monog. U. 

 S. G. S., vol. 18), p. 268, pi. 45, figs. 1-5. 



Description. Shell with the coils in close contact, the volu- 

 tions higher than wide, with a moderately wide umbilical open- 

 ing in the cast, the living chamber occupying a little more than 

 one full volution ; upper edge of the volutions angular externally 

 where they meet the next succeeding volutions above, within the 

 angle the surface in contact with the next volution above is con- 



1 Meek, Inv. Cret. and Ter. Foss. Up. Mo., p. 484, pi. 21, figs. 3 a-c. 



