538 



NEW YORK STATE MUSEUM 



Vaginoceras oppletum sp. nov. 



Page 413 



See pi. 4, tig. 2, 3 ; pi. 6, fig. 1 ; pi. 9 , fig. 1-3 



I Apical portion of a specimen, showing a natural section of the 

 nepionic bulb 



2, 3, 4 Three views of a septum to show its lobation 

 The original of figure I is from B 4 of the lower Chazy of the Val- 

 cour section, that of figures 2, 3, 4 from the clove-colored Chazy 

 limestone west of Little Monty bay near Chazy village. Both 

 are now in the New York State Museum. 



Cameroceras tenuiseptum Hall (sp.) 



Page 408 



S,e pi. 3. fig. 1, 2 ; pi. 4, fig. 1 ; pi. 6, fig. 2 



5 Section of fragment of the apical portion, showing the nepionic 



bulb and early endosiphosheaths 

 f) View of siphuncle showing saddles of the septa on the siphonal 

 side 



1 he originals of figures 5, 6 are from the dove-colored limestone of 

 Isle La Motte and now in the museum of Burlington University. 



