EXPLANATION OF PLATE VL 



PAGE. 



Goniatites missouriensis, n. sp., 164 



Fig. I, side view, natural size. 



Goniatites sciotoensis, n. .sp., 165 



Fig. 2, side view, natural size. 



Fig. 3, dorsal view with anterior end turned downward, and 



showing radiating furrows curving backward over the 



dorsum. 



Trematoceras ohioense, n. sp., 168 



Fig. 4, lateral view, natural size. 

 Fig. 5, dorsal view, looking forward. 



Goniatites occidentalis, n. sp 166 



Fig. 6, lateral view, natural size. 



Fig. 7, dorsal view, showing end of siphuncle at the upper 

 margin and two spots where it is broken into on the 

 dorsum, a radiating furrow and the outlines of two septa 

 crossing the dorsum. 



Goniatites limatus, n. sp., 166 



Fig. 8, lateral view, natural size. 



Fig. 9, dorsal view, the fracture at the end destroys the 

 saddles and lobes, leaving only the three inferior inden- 

 tations. 



Goniatites leviculus, n. sp., 167 



Fig. 10, lateral view, natural size. 



Fig. II, dorsal view, showing the septa on the dorsum and 

 an end view. 



