PLATE 44. 
1. 273. 5 . Endoceras anntjlatum. (Pag- 207.) 
1 a. Lateral view of a fragment, showing the arching of the annulations towards the left side. The fine dark 
transverse lines indicate the edges of the septa. 
1 b. Longitudinal section, showing the position of the siphuncle, convexity of the septa, and internal tubes. 
