TYPE SPECIMENS OF INFERIOR OOLITE AMMONITES. 



The type specimens of Ammonites concavus, A. murchisonse, A. striatulus, and 

 A. jugosus, originally described and figured by the Sowerbys in their 'Mineral 

 Conchology,' have already been re-figured and discussed by Mr. S. S. Buckman in 

 his ' Monograph of the Ammonites of the Inferior Oolite Series,' vol. i, published 

 by the Palaeontograpbical Societ}^ in parts between 1887 and 1907. The type 

 specimens of the other species in the Sowerby Collection are now illustrated by 

 new figures in the accompanying seven plates. It has been deemed useful to 

 reprint the original descriptions for reference. 



It has not been possible to trace the type specimens of Ammonites braikenridgii, 

 A. brongniarti, A. contractus, and A. geroillii. 



LIST OF PLATES 



I. — Ammonites ha nksii. 

 [I.— ,, blagdeni. 



III.— 



IV— 



V.— 



VI.— 



VII.— 



,, and A. banlcsii, with text-figures of A. sowerbii. 

 brocchii. 



brodioei and A. parldnsoni. 



Iseviuscidus, A. subradiatus, A. corrugatus, and A. browni. 

 /in in jili riesianus and A. Irrodioei. 



Unless otherwise stated, the figures are of the natural size. 



