280 8QTTAMATA. 



with the fragment figured by Filhol in the 'Ann. Sci. 

 Geol.' vol. viii. pi. xxvi. fig. 434, as the type of Palceova- 

 ranus. The teeth are certainly Anguoid. 



Purchased, 1884. 



R. 428. Numerous vertebrae, of which at least the majority probably 

 (Fig.) belong to this form, although some may be referable to the 

 next ; from Caylux (Tarn-et-Garonne). These specimens 

 comprise dorsals, sacrals, and caudals. The dorsals (fig. 62), 

 although presenting a strong resemblance to those of 

 Varanus, differ by the still more marked flatness of the 

 haemal aspect of the centrum and the lower position of 

 the costal tubercle, in both of which respects they agree 

 with the dorsals of Ophisaurus. In their more developed 

 neural spines they differ from Ophisaurus, and resemble 

 Diploglossus. They are noticed by the writer in the 

 4 Geol. Mag.' dec. 3, vol. v. p. 111. Purchased, 1884. 



R. 387. A left femur, agreeing in relative size with the preceding 

 specimens ; from Caylux. Agrees with the specimen of 

 the opposite side figured by Filhol in the ' Ann. Sci. Ge'ol.' 

 vol. viii. pi. xxvi. figs. 445 & 446, as Palceovaranus cayluoci. 

 This bone differs from the femur of Varanus by the rela- 

 tively longer shaft, the approximation of the great tro- 

 chanter to the head, and the contour of the latter ; in all 

 of which respects it comes much nearer to the femur of 

 Diploglossus. Noticed by the writer, op. cit. 



Same history. 



R. 431. A left femur of similar type, together with a right tibia, 

 apparently belonging to the same individual; from the 

 Phosphorites of Lalbenque (Lot), France. Same history, 



32840. Numerous vertebrae, apparently belonging to small indivi- 

 duals of this genus, and perhaps referable to the present 

 species; from the Upper Eocene (Lower Oligocene) of 

 Hordwell, Hampshire. Noticed by the writer, op. cit., 

 where it is mentioned that they may be equally well re-, 

 ferable to P. rugosus, if there be two species of the genus. 

 Hastings Collection. Purchased, 1855. 



30968-9. A dorsal and a caudal vertebra of similar type to the 

 preceding ; from the Lower Miocene (Upper Oligocene) of 

 St. Gerand-le-Puy (Allier), France. 



Bravard Collection. Purchased, 1852. 



