786 CRETACEOUS PALEONTOLOGY. 



Remarks. — This species differs from R. nasutus and R. angu- 

 latus especially in the proportionally shorter spire, in the more 

 symmetrical body volution, and in the greater strength of the 

 markings oi the shell. In general it seems tO' be more character- 

 istic of the Merchantville clay, while the others occur most com- 

 monly in the Navesink marl. 



Formation and locality. — Merchantville clay-marl, Lenola 

 (163) ; Navesink marl, Holmdel (Whitfield). 



Geographic distribution. — New Jersey, Alabama, Mississippi. 



Rostellites nasutus Gabb. 



Plate XCVIL, Pigs. 1-2. 



i860. Volutilithes ttasuta Gabb, Jour. Acad. Nat. Sci. Phil., 2nd 



ser., vol. 4, p. 300, pi. 48, fig. 9. 

 1861. Volutilithes nasuta Gabb, Synop. Moll. Cret. Eorm., p. 



150 (94)- 

 1861. Fulgwraria nasuta Gabb, Proc. Acad. Nat. Sci. Phil. 



( 1 861), p. 364. 

 1864. Rostellites nasuta Meek, Check List Inv. Foss. N. A.,. 



Cret. and Jur., p. 21. 

 1868. Rostellites nasutus Con., Cook's Geol. N. J., p. 730. 

 1876. Rostellites nasutus Gabb, Proc. Acad. Nat. Sci. Phil. 



(1876), p. 294. 

 1892. Rostellites nasutus Wh\ii., Pal. N. J., vol. 2 (Monog. U. 



S. G. S., vol. 18), p. 86, pi. II, figs. 1-2. 

 1905. Rostellites nasutus Johns., Proc. Acad. Nat. Sci. PhiL 



(1905), p. 25. 



Descriptioriy. — "Shell of moderately large size, sometimes 

 attaining a length of nearly or quite 5 inches. Form slender, 

 with a proportionally short, turreted spire, varying from two- 

 thirds of the length of the body volution in the casts to not more 

 than one-third in the shell itself ; number of volutions uncertain, 

 the type specimai having had about four ; body volution slender, 

 most ventricose near the upper part, marked by numerous spiral 

 ridges with broader interspaces which have possibly been marked 



