PLATE XLV. 
Gomphoceras OVIEORME. 
Page 344. 
See Plates 46, 94. 
Fig. 1. A view of the aperture of a specimen showing the comparative size and relations of the large and 
small apertures. Goniatite limestone of the Marcellus shale, near Manlius, N. Y. 
Fig. 2. Dorsal view of a specimen, showing the general form of the shell and the truncated apex. The api¬ 
cal portion is not fully represented, the specimen preserving considerable more of the test cover¬ 
ing the apex than is represented in the figure. A fragment of the test is preserved on the 
chamber of habitation, showing the fine, lamellose lines of growth. Goniatite limestone. /Scho¬ 
harie, N. Y. 
Fig. 3. The aperture of the preceding specimen, which is somewhat larger in proportion to the diameter of 
the tube' than in the specimen shown in fig. 1. 
Fig. 4. A view of the aperture of another individual, which exhibits a considerable variation from the pre¬ 
ceding specimens in the position of the aperture and the non-symmetrical arrangement of the 
large and small apertures. Goniatite limestone. Schoharie, N. Y. 
Gomphoceras Fischeri. 
Page 336. 
Fig. 5. Lateral view of an individual, showing its fusiform shape and the crenulated zone at the base of the 
chamber of habitation, with the furrows continued over the walls of the air-chambers. A frag¬ 
ment of the test, showing the surface-markings, is preserved over a small portion of the air- 
chambers. The apical portion is partially restored, and represents a much smaller apical angle 
than is indicated in the other specimens of the species. Goniatite limestone, near Manlius, N. Y 
Fig. 6. Represents a fragment of another specimen from the same locality, preserving - the shell over the 
entire surface of the tube, and showing the broad sinus of the striae over the ventral side. 
