PLATE LXIX. 
Goniatites simulator. ’ 
Page 463. 
See Plate 74. 
Fig: 1. Lateral view of a specimen showing a considerable part of the grand ,,ch amber, with the remaining 
portion distinctly marked by the septal lines. Chemung group. Near Ithaca, JY. Y. 
Fig. 2. Profile of the same, showing the course of the septa and minute ventral lobe. , The specimen is 
somewhat imperfect, and the outline of the aperture on the right side of the figure has been 
restored to correspond with the preserved portion on the left side. The basal margins of the 
aperture are more angular than represented. 
Goniatites Vanuxemi. 
Page 434. 
See Plates 66, 67, 68, 109. 
Fig. 3. Lateral view of a young specimen which is septate throughout (the outer chamber wanting), and the 
volutions very rotund. 
Fig. 4. The peripheral side of the same individual, showing the ventral lobe and the double revolving 
furrows, which mark this stage of growth. 
Fig. 5. Lateral view of a larger specimen, showing the revolving grooves and transverse undulations, both 
of which usually become obsolete in the more advanced stages of growth. 
Fig - . 6. Lateral view of a larger individual, showing the gradual obsolescence of the external features which 
mark the younger stages of growth. The specimens of this species, here illustrated, are from 
the Goniatite limestone of the Marcellus shales. Near Manlius, N. Y. 
Goniatites Mithrax. 
Page 433. 
gee Plate 74. 
Fig. 7. Lateral view of the specimen originally described, showing the form and disposition of the septa. 
Upper Helderberg limestone. Near Columbus, Ohio. 
Goniatites peracutus. 
Page 463. 
See Plate 74. 
Fig. 8. Lateral view of a fragment preserving the base of the grand chamber and several adjacent air- 
chambers. From the base of the Chemung group. Near Ithaca, N. Y. 
Goniatites Chemungensis. 
Page 467. 
See Plate 74. 
Fig. 9. View of the original of Mr. Vandxem’s figure. The specimen shows parts of several of the inner 
volutions and the impression of others, with a portion of the principal one. Chemung group. 
Near Owego, N. Y. 
Goniatites Chemungensis, var. equicostatus. 
Page 469. 
Fig. 10. Lateral view of a specimen which is very imperfectly preserved, but showing the annulations of 
the tube. 
