PLATE XIV. 



1« and h. Ammonites laticlavius; from the Grey Chalk of Bonchurch, in the Isle of 

 Wight; in my possession. 



2a, h, and c. Ammonites Oldhami ; from the Hard Chalk of Dungivan, in the County of 

 Derry ; in the Museum of Practical Geology, London, The surface of 

 the original was waterworn, and has been a good deal restored in the 

 drawing. 



3a and h. Ammonites leptonema ; from the Grey Chalk of Ventnor, in the Isle of Wight ; 

 in my possession. 



