262 PALEONTOLOGY OF NEW JERSEY. 



common, and from whence it was originally described. It is the first case 

 ( )f its notice in New Jersey, and, so far as I am aware, at any point east of 

 the Missouri River. 



Since writing the above, three other fragments, of somewhat smaller 

 size, have been noticed among the collections made by G. C. Schanck, in 

 the white limestone nodules at the base of the Lower Grreen Marls, near 

 Marlborough, New Jersej", having the same features, placing it beyond 

 doubt as a New Jersey fossil. These are in the State collections at New 

 Brunswick. 



SCAPHITES HIPPOCEEPIS. 



Plate XLiv, Figs. 8-12. 



Ammonites hippocrepis De Kay: Ann. New York Lyceum, vol. 2, p. 5, Fig. 5. 

 Not Ammonites hoppocrepis Morton: Jour. Acad. Nat. Sol., Pliila., 1st ser., vol. 6, 



p. 88, PL V, Fig. 5. 

 Scaphites hippocrepis Morton: Synopsis, p. 41; Gabb, Synopsis, p. 32; Meek, 



Check List Cret., p. 24; Geol. Surv. New Jersey, 1868, p. 730. 

 Scaphites Cuvieri Morton: Jour. Acad. Nat. Sci., Phila., 1st ser., vol. 6, p. 109, PL 



VII, Fig. 1. 



This species was originally described by Dr. De Kay from an imper- 

 fect fragment, but subsequently redescribed, from a very perfect cast, by 

 Dr. Morton in his Synopsis. The specimen which he used is now in my 

 hands, together with the outer chamber of a much smaller individual. Dr. 

 Morton's specimen is ovate in general outline, with a very ventricose outer 

 chamber, which has the greatest transverse diameter below the outer angle 

 of the horizontal portion, a little within the point from which rises the line 

 of the hood-like aperture ; above the point indicated the diameter rajDidly 

 decreases again to the line of the aperture. The inner coils, the number 

 of which can not be determined, are laterally compressed, although they 

 might be considered as ventricose for a shell of the genus, being- nearly as 

 large transversly as in a dorso-ventral direction, but in comparison with the 

 very rapidly increasing outer portion of the shell, from the origin of the 

 horizontal portion to the point of greatest diameter, this inner part seems 

 quite consti'icted. From the position of the last septum, which terminates 

 at the umbilicus of the inner part, the ventral margin rises abruptly, giving 



