CONTENTS 



Part IX 



Introduction : — Page 



Editorial v 



Bibliographic Details v 



Terminology vi 



Ammonite Development ix 



Geological Details x 



Systematic : — 



Nomenclature 



Descriptions :- 



68 

 69 



7" 

 7' 

 72 

 73 

 74 



A. vermis 



A. foveatus . . 



A. gubernator 



A. subtriangularis 



A. aculeatus . . 



A. luridus 



A. nitescens . . 



Plate LXVIII 



LXIX 



LXX 



LXXI A, B 

 LXXII A, B, c 



LXXIII 

 LXXIV 



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