554 NEW YORK STATE MUSEUM 



Orthoceras vagutn sp. nov. 



Page 4J5 

 See pi. 9, fig. 9 



I, 2 Two views of the type specimen showing its irregularly curv- 

 ing form, rate of growth, suture and depth of chambers 

 3 Natural section of another specimen, showing the siphuncle and 



depth of septa 

 The original of figures i, 2 is from the dove-colored Chazy lime- 

 stone of the east shore of Valcour island and now in the New 

 York State Museum ; that of figure 3 is from the same horizon on 

 Isle La Motte Vt., and now in the American Museum of Natural 

 History in New York. 





