PLATE LXX. 



EnoMPHALns (Straparollus) clyuemoides. 



Pageet. 

 See Plates 16, 27. 

 V%g. 1. The umbilical side of an imperfect specimen preserving about two and a half volutions. 

 Tig. 3. The opposite side of another individual preserving a single volution, the apical end showing ^a 



septum of decollation. 

 Fig. 8. Another specimen, the extremity of which shows a similar condition of decollation. 

 Fig. 4. A large sjiecimen pi-eserving about two and a half volutions. 

 Fig. S. A small individual preserving the inner volutions entire. 



The above are from the Schoharie grit. Albany and Schoharie counties, N. T. 



GONIATITES C0MPLANAT08. 



Page i56. 



Tig. 6. Lateral view of a specimen of ordinary size, very much compressed. From the Hamiltion group, 



just below the Genesee slate, thil creek, &eneseo. If. F. 

 Fig. 7. Lateral view of a slightly larger, compressed specimen, showing very faintly the surface strite. 



Moscow, N. T. 

 Fig. 8. Lateral view of a specimen preserving the septa. Near Qeneaeo, N. Y. 

 Fig. 9. Lateral view of another individual, doubtfully referred to this species. 

 Fig. 10. An extremely compressed specimen, leaving scarcely more than an impression of the form Mdth 



some of the surface-markings. Portage group. Eighteen-mile creek. Lake Brie shore, N. Y. 

 Fig. 11. An extremely compressed individual which has been in part i-eplaced> by irom pyrites. Froa; the 



Portage group. Cashaqva creek, Livingston county, N. T. 



GONIATITES COMPLANATUS, var. PERLATUS. 

 Page 458. 

 Fig. 12. A large individual, probably a variety of the preceding Bx>ecie8. Lower Chemung group. Near 

 Bomer, N. Y. 



GONIATITES 8IN0O8nS. 

 Page 460. 

 ^ See Plates 72, 74. 



Fig. 13. Internal mould of a small specimen showing the form slightly distorted, with numerous lines of 



septa preserved. Lower Chemung grouji, at the inclined plane of i-ailroa(i, Ithaca, N. T. 

 Fig. 14. A fragment of stone containing a segment of the outer volution and inipi-essions of several of the 

 inner volutions, showing the surface stride and septa. Ithaca beds of the Chemung gi'oup. 

 Near Tnurion, N. Y. 

 Fig. 15. Lateral view of a large compressed specimen, showing the general form and a few of the septa. 

 From the same beds as the above, at the railroad inclined plane, near Ithaca, N. Y. 



