534 NEW YORK STATE MUSEUM 



Cameroceras tenuiseptum Hall (sp.) 



Page 408 

 See pi. 4, fig. I ; pi. 5, fig. 5, 6 ; pi. 6, fig 2 



1 Fragment of large specimen, retaining the outer shell on the 



lower part and showing the sutures on the upper part. Section 

 of the same represented on plate 4, figure i 



2 Natural section of a specimen, showing the cameras, the depth 



of the septa, the siphuncle with endosipholining and endosi- 

 photube. The septa are drawn too straight in the lithograph 

 The original of figure i is from the dove-colored Chazy limestone 

 of Isle La Motte, Vt. and now in the museum of Burlington 

 University and that of figure 2 is from the dove-colored Chazy 

 limestone near Little Monty bay, south of Chazy village, N. Y. 

 and now in the New York State Museum. 



