9 "SO 



1S70.] '^ ^ [Wiiichc]]. 



O. Slmmardiamis has a simple dorsal loLe and an open umbilicus. 

 G. i^ropinquiis lias a sliorter and narrower dorsal lobe than G. Shumar- 

 dianus, Avitli a closed umbilicus. 

 GONIATITES OrilENSIS, n. sp. 



Compressed-globoid, deeply and broadly unibilicate. Dorsum rounded, 

 sides considerably and somewhat obliquely flattened, so as to give the 

 widest transverse section near the borders of the umbilicus, this diameter 

 l)eing to the dorso-ventral as 4 to 3. Dorsal lobe oblong, parallel-sided, 

 obtuse, separated, by a broader and longer, obtusely rounded dorsal sad- 

 dle, from a subclavate, acute lateral lobe, which reaches half its length be- 

 hind the dorsal one. This lobe is followed by a very broad shallow saddle 

 having its apex turned obliquely toward the dorsum. Second lateral lobe 

 small, equilaterally triangular, situated on the brink of the umbilicus. 



Greatest transverse diameter, fifteen-sixteenths of an inch ; dorso-ven- 

 tral diameter, twelve-sixteenths; diameter of umbilicus, seven-sixteenths. 



Differs from G. Shumardianus in its parallel-sided, obtuse dorsal, and 

 linguiform, acuminate first lateral lobe ; also, in the oblique position of 

 the lateral saddle. There is no species likely to be confounded with it 

 unless it be G. Andreiosi, which has the sides more convex, and differs 

 also in its acuminate-clavate dorsal lobe. 



From Newark, Ohio. Collected by Rev. H. Herzer. 



GoNiATiTES Andrew^ SI, n. sp. 



Compressed-globoid; deeply, broadly and abruptlj' umbilicate. Rounded 

 on the sides, and more rapidly on the dorsum; greatest width close to the 

 umbilicus ; transverse diameter to the dorso-ventral as 4 to 3. Dorsal 

 lobe long, clavate, acjjminate, sei^arated by a sub-clavate broadly rounded 

 saddle from the first lateral lobe, which is also clavate-acuminate, but a 

 little broader than the dorsal, and a tritie shorter. This is followed by a 

 very broad, obliquely situated saddle, having its dorsal side concave in 

 the middle, and its umbilical side gently convex. The whorls are marked 

 each by about four constrictions. In one specimen, which seems to pre- 

 serve a portion of the shell, it is seen to present somewhat uniform, close- 

 ly-set, transverse wrinkles in the region near the umbilicus. Casts of the 

 umbilicus retain the impression of every whorl to the very apex, and show 

 that this species attained seven or eight volutions, the later of which in- 

 creased in transverse diameter more rapidly than tlie earlier. 



From Newark, Ohio. Collected by Rev. H. Ilerzer. 



Cythere CRASSIMARGINATA, Win. (Proc. A. N. S., Phil., Sep.. 1862.) 

 From bed No. 5, Rockville, Ohio. Some of the specimens attain twice 

 the dimensions of the types of the species. 



Phii.lipsia. Missouriensis, Shum. sp. 



From Newark, Ohio. Collected by Rev. H. Herzer. 



All the known characters of the species are exhibited, except the gran- 

 ulations of the surface, which the state of preservation of the specimens 

 renders it impossible to detect. 



Phillipsia Tennesseeksis, Win. (Tenn. Geol. Rep. p. 445.) 



Glabella prominent, indented by a small, round, depressed, postero- 

 lateral lobe, and isolated by a deep occipital furrow from fi' prominent 



