IGTJANODONTmE. 221 



very marked extent. The metarsals agree in size with 

 those of the cast INo. E. 1114 of the specimen in Mr. 

 Beckles's collection. Purchased, 1880. 



Specifically undetermined Specimens. 



Unless it is stated to the contrary, the following specimens are from 

 the Wealden. Some of the smaller ones may belong to Spheno- 

 spondylus gracilis. 



R. 180. The nearly entire dentary bone of the left ramus of the 



(Fig.) mandible of a young individual ; from Brixton, Isle of 



Wight. Figured by Owen in his ' Wealden and Purbeck 



Eeptilia ' (Mon. Pal. Soc), suppl. iii. pi. x. (1864). Three 



teeth are shown in their alveoli. 



Fox Collection. Fur chased, 1882. 



3388. A very small tooth ; from Cuckfield, Sussex. Figured by 



(Fig.) Mantell in his ' Geology of the South-east of England,' 



p. 270, fig. 1. Mantell Collection. Purchased, 1838. 



2390. The crown of a lower tooth; from Cuckfield. Figured by 

 (Fig.) Mantell in his ' Fossils of Tilgate Forest/ pi. iv. fig. 7. 



Same history. 



2394. A much-worn upper tooth; from Cuckfield. Figured by 



(Fig.) Mantell, op. cit. pi. iv. fig. 5 and pi. xvii. fig. 2, and also 



in his i Geology of the South-east of England,' p. 270, 



figs. 4, 5. Same, 



2393. A worn upper tooth ; from Cuckfield. Figured in ' Fossils 

 (Fig.) of Tilgate Forest,' pi. iv. fig. 12. Same history. 



2392. A partially worn lower tooth ; from Cuckfield. Figured by 



(Fig.) Mantell, op. cit. pi. iv. fig. 4, and in his ' Geology of the 



South-east of England,' p. 272, figs. 4, 5. Same history. 



2382. A worn upper tooth ; from Cuckfield. Figured by Owen in 



(Fig.) his ' Wealden and Purbeck Eeptilia,' pt. ii. pi. xviii. fig. 1 



(1855). Same history. 



36497. The crown of an unworn lower tooth of large size (? I. ber- 

 (Fig.) nissartensis) ; from Cuckfield. Figured by Mantell in his 



' Petrifactions,' p. 235, fig. 50, and by Owen, op. cit. 



pi. xviii. fig. 3. Mantell Collection. Purchased, 1853. 



Q2 



