sent species ; from the Upper Eocene of Caylux (Tarn-et- 

 Garonne), France. Purchased, 1884. 



M. 1674. Part of the left ramus of the mandible, containing the 

 second and third true molars ; from the Upper Eocene of 

 Caylux. This specimen seems to he precisely similar to 

 the type mandible figured by Filhol in the Ann. Sci. Geol. 

 vol. vii. pi. xxxii. fig. 160. Purchased, 1884. 



M. 1675. Three canines, not improbably belonging to this species ; 

 from the Upper Eocene of Bach, near Lalbenque (Lot), 

 France. Purchased, 1884. 



23181. The left ramus of the mandible, -with the teeth in a broken 

 and much- worn condition ; from the Upper Eocene of 

 Debruge. Bravard Collection. Purchased, 1852. 



27180-6. Several incisor and premolar teeth ; from the Upper 

 Eocene of Debruge. Bravard Collection. Purchased, 1852. 



28204. Fragment of the left ramus of the mandible, containing five 



cheek-teeth ; from the Upper Eocene of Debruge. 



Bravard Collection. Purchased, 1852. 



28178-9. Two canines ; from the Upper Eocene of Debruge. 



Bravard Collection. Purchased, 1852. 



28206-9. Four canines ; from the Upper Eocene of Debruge. 



Bravard Collection. Purchased, 1852. 



28222. A canine ; from the Upper Eocene of Debruge. 



Bravard Collection. Purchased, 1852. 



28174. The second left upper true molar, of unusually large size 

 and in an unworn condition ; from the Upper Eocene of 

 Yaucluse. Bravard Collection. Purchased, 1852. 



28205, 28227. A premolar and an upper true molar ; from the 



Upper Eocene of Vaucluse. 



Bravard Collection. Purchased, 1852. 



Hyaenodon brachyrhynchus, Blainville 1 . 

 Syn. Pterodon brachyrhynchus, Pomel 2 . 

 Pterodon requieni, P. Gervais 3 . 

 Hycznodon reyuieni, P. Gervais 4 . 



1 ' Osteographie,' Genus Canis, p. 113(1842?). 



2 Bull. Soc. Geol. France, ser. 2, yol. iv. p. 392 (1846). 



3 Comptes Kendus, vol. xxii. p. 846 (1846). 



* Zool. et Pal. Fransaises, 1st ed. vol. i. p. 129 (1848-52). 



