yt. 
HY ENODONTIDZ. 33 
France and the Upper Tertiaries of India of this peculiar 
form of tooth is a very interesting and noteworthy circum- 
stance, and affords a well-marked instance of the survival 
in India and other eastern regions of forms which dis- 
appeared at a much earlier period in Europe. 
Purchased, 1884. 
Genus PTERODON, Blainville’. 
Beals hs? (2—3) 1 4 t 2 
Dentition ie aaron rS C. i Pn. G4 M. 3 
and Oxyena in a distinct family—Oxyenide. 
Cope places this genus 
Pterodon dasyuroides, Blainville’. 
Syn. Pterodon parisiensis, Blainyille es 
(?) Pterodon cuviert, Pomel ®. 
(?) Pterodon coquandi, Pomel *. 
Hab. Europe. 
M. 1361. Fragment of the right maxilla, containing the first and 
second true molars, in an almost unworn condition ; from 
the Upper Eocene of Caylux (Tarn-et-Garonne), France. 
These teeth are rather larger than those of a fine cranium 
figured by Filhol in the Ann. Soc. Sci. Phys. Nat. Toulouse, 
1882, pl. i. Purchased, 1884. 
27579. Fragment of the right maxilla, containing the last premolar 
and the three true molars, in a partially worn condition ; 
from the Upper Eocene of Débruge, near Apt (Vaucluse), 
France. The teeth of this specimen (which apparently 
corresponds to P. cuviert, Pomel) are considerably smaller 
than those of the last specimen, but do not present any 
structural difference, and seem to belong to a smaller race 
of the same species. Bravard Collection. Purchased, 1852. 
M.1689. Part of the left maxilla, containing the three true molars ; 
from the Upper Eocene of Bach, near Lalbenque (Lot), 
France. The teeth of this specimen are slightly smaller 
1 Ann. Fr. et Etr. d’Anat. et de Physiol. vol. iii. p. 23 (1839), ¢este P. Gervais, 
2 Cope (Amer. Nat. 1884, p. 481) gives the number of the cheek-teeth simply 
as Pm. 3, M. 3. There are, however, seven of these teeth in typical examples 
of P. dasyuroides ; vide Filhol, Ann. Soc. Sci. Phys. Nat. Toulouse, 1882, pl. ii. 
3 Loe. cit. * Ostéographie, genus Subursus, p. 48 (1841). 
® Bull. Soc. Géol. France, ser. 2, vol. iv. p. 392 (1846). 
® Catalogue Méthodique, p. 117 (1853). 
