PLATE XIV. 



Pig. 



\a and b. Ammonites laticlavius ; from the Grey Chalk of Bonchurch, in the Isle of 



Wight; in my possession. 



2a, b, 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. 



3(7. find b. Ammonites leptonema ; from the Grey Chalk of Ventnor, in the Isle of Wight ; 

 in my possession. 



