^44 NEW YORK STATE MUSEUM 



Endoceras magister sp. nov. 



Page 423 



I Natural section of the type specimen, showing the size and mar- 

 ginal position of the siphuncle and the depth of the chambers 

 and septa 

 The original is from the lower Chazy beds of the Valcour shore 

 (B, of the section described on page 398) and now in the New 

 York State Museum. 



