340 RHINOCEROS. 



in the Appendix, p. 45, as " the specimen in the Museum 

 of Sir Ashton Lever, No. 20, which was found under 

 ground by digging at Thame, in Oxfordshire." 



The original, now in the Geological Museum at Oxford, 

 was kindly pointed out to me by Professor Buckland, 

 who has attached to it the following note : " In 1829 

 I purchased this specimen at a sale in London, from 

 the Museum of Mr. Donovan, who probably purchased 

 it at the sale of the Leverian Museum." The extract 

 from the ' Ossemens Fossiles,' 1822, vol. ii. p. 54, is 

 added, as follows. " Douglas (loc. cit. App. p. 45,) re- 

 presente un fragment de machoire inferieure contenant trois 

 dents, trouve en creusant un puits, a Thame, dans le comte 

 (FOxford, et conserve alors dans le Mus6e de Lever. II 

 paroit de Tespece de Lombardie a narines non cloisonn^es." 



The distinctive characters of the lower jaw of the species 

 of extinct Rhinoceros, called by Cuvier ' non-cloisonn or 

 leptorhinus? are very clearly illustrated by the figures of 

 the Lombardy specimens, which he has given in pi. ix. 

 figs. 8 and 9 of the volume cited, and by the English 

 fossils described and figured in the succeeding section. 

 The lower jaw from Thame manifests as clearly, by 

 the position of the first premolar behind the symphysis, its 

 specific identity with the Rhinoceros tichorhinus, and it so 

 closely agrees with the specimen from Lawford (fig. 128), 

 as to render a figure of it unnecessary in this work. 



In that which Douglas has given of the natural size, 

 viewed from the inside (the mirror not employed), the 

 second premolar, which was then in place, is behind the 

 symphysis, and the small, partially divided socket for the 

 first premolar has the same relative position to the 

 posterior border of the symphysis as in the lower jaw 

 (fig. 128). Douglas's specimen belonged to an immature 



