PLESIOSATJRIDiE. 175 



R. 1216. The crown of a small tooth in matrix ; from Kent. The 

 ridges are few and widely separated. No history. 



41242. Part of the crown of a very small tooth in matrix ; from 

 Kent. Purchased, 1868. 



41897. The broken crown of a larger tooth, in matrix ; from Kent. 

 The upper portion is nearly smooth. Purchased, 1870. 



43081. The imperfect crown of a large tooth ; from Cuxton, Kent. 



Purchased, 1871. 



41641. The crowns of two teeth (one imperfect) ; from Burham, 

 Kent. . Purchased, 1869. 



R. 1217. The crown of a small tooth in matrix : from Burham. 



No history. 



R. 51. The crown of a small tooth in matrix, provisionally referred 

 to this species ; from Charing. The convex side is almost 

 totally devoid of ridges. Purchased. 



41861. A very similar but slightly larger specimen, in matrix; 

 from near Rochester. Purchased, 1869. 



5644. The crown of a very similar tooth ; from Steyning, Sussex. 



Mantell Collection. Purchased, 1838. 



5644 a. The imperfect crown of a larger tooth ; from Steyning. 



Mantell Collection. 



5645. The crown and part of the root of a large tooth in matrix ; 



from Steyning. The enamel is wanting on the convex 

 side. Mantell Collection. 



49914. The imperfect crown of a small tooth in matrix ; from 

 Glynde, Sussex. Capron Collection. 



49961. The imperfect crown of a small tooth ; from Lewes, Sussex. 



Capron Collection. 



R. 1264. A number of associated teeth of medium size ; together 

 with fragments of bone ; from Lewes, Sussex. 



Harford Collection. Purchased, 1888. 



R. 1265. Five small teeth ; from Lewes. Harford Collection. 



R. 1266. Three imperfect teeth of large size ; from Lewes. 



Harford Collection. 



R. 1267. A medium-sized tooth in matrix ; from Hailing, Kent. 



Harford Collection. 



