26 CARNIVORA. 
29814. The last right lower true molar ; from the Headon beds of 
the Isle of Wight. Hastings Collection. Purchased, 1850. 
29807. A canine; from the Headon beds of the Isle of Wight. 
Hastings Collection. Purchased, 1855. 
Hyzenodon leptorhynchus, Laizer and Parieu’. 
Syn. Pterodon leptorhynchus, Pomel?. 
In this species the last upper premolar has a well-marked anterior 
talon, and the second upper premolar has a long and low crown. 
Hab. France. 
M. 1350. The nearly complete mandible, wanting the incisors and 
the articular extremity of the left ramus; from the Upper 
Eocene of Caylux (Tarn-et-Garonne), France. This 
beautiful specimen, in which the teeth are but very 
slightly worn, agrees very closely with the one figured by 
P. Gervais in the Zool. et Pal. Francaises, 2nd ed. pl. xxv. 
fig. 10, but is slightly smaller, and the crowns of the two 
middle premolars appear slightly higher. 
Purchased, 1848. 
27821. The imperfect mandible, showing the canine and all the 
cheek-teeth of the right side except m.3; from the Lower 
Miocene of Sauvetat (Puy-de-Dome), France. Slight dif- 
ferences can be detected between the premolars of this and 
the last specimen. Croizet Collection. Purchased, 1848. 
M.1379. The last left lower true molar ; from the Upper Eocene of 
Caylux. Purchased, 1848. 
ahe8 27820. A premolar and the last molar of the lower jaw; 
from the Lower Miocene of Sauvetat. These specimens 
are provisionally referred to the present species ; they are 
somewhat larger than the corresponding teeth of the fore- 
going specimen, but they are not larger than those of a 
specimen figured by Filhol in the Ann, Sci. Géol. vol. vii. 
pl. xxix. fig. 148. Croizet Collection. Purchased, 1848. 
M. 1670. Part of the right maxilla, containing the last premolar and 
the two true molars; from the Upper Eocene of Caylux. 
This specimen agrees precisely with the corresponding 
1 Ann. Sci. Nat. ser. 2, vol. xi. p. 27 (1839). 
2 Bull. Soc. Géol. France, ser. 2, vol. iv. p. 892 (1846). 
—— 
