424 CRETACEOUS PALEONTOLOGY. 



Remarks. — This species was described as being "a miniature 

 of G. ensiformis, except in its greater ventricosity." The type 

 specimen seems to have been lost or destroyed, as it can be found 

 neither in the collection at Trenton nor at Rutgers College. Sep- 

 cimens having these characters, however, are not uncommon in 

 the Ripley formation of Mississippi, and the species is undoubtedly 

 a good one. The smaller examples from New Jersey in the 

 recent collections are none of them so ventricose as the southern 

 specimens which have been observed, and seem to be more prop- 

 erly but small individuals of G. ensiformis^ and have been so 

 identified. 



Formation and locality. — Navesink marl, Freehold (Whit- 

 field). 



Geographic distribution. — New Jersey, Mississippi. 



Genus Inoceramus Sowerby. 

 Inoceramus proximus Tuomey. 



Plate XL., Figs. 1-6; Plate XLI., Fig. i. 



1854. Inoceramus proximus Tuom., Proc. Acad. Nat. Sci. Phil., 



vol. 7, p. 171. 

 i860. Inoceramus Mortoni M. & H., Proc. Acad. Nat. Sci. 



Phil., i860, p. 428. 

 1 86 1. Inoceramus pro.vimus Gabb, Synop. Moll. Cret. Form., 



p. 185 (129). 

 1864. Inoceramus proximus Meek, Check List Inv. Foss. N. A., 



Cret. and Jur., p. 10. 

 1876. Inoceramus proxiwMS ? Meek, Rep. Inv. Cret. and Ter. 



Foss. Up. Mo., p. 53, pi. 12, figs. 7 a-b. 

 1886. Inoceramus Sagensis Whitf., Pal. N. J., vol. i (Monog. 



U. S. G. S., vol. 9), p. 76, pi. 14, fig. 15, pi. IS, figs. 1-2. 



Description. — Shell in large examples attaining a height of 

 100 mm. or more, and a length of 120 mm. or more. The 

 valves subovate in outline, moderately convex, the hinge-line 

 about two-thirds the length of the shell, the beak but little ele- 



