442 
The yellow clay is found in many other branches of this valley, and 
fossils are met with there very frequently. 
In the year 1800, M. Tourtelle, of Fouvent-le-Prieure, a little village 
near Gray, in the department of Upper Saone, excavating a limestone 
rock, to extend his garden, found, in a fissure of the rock, various 
uncommon bones of different shapes and sizes. The excavations being 
increased, several more bones were found, and transmitted to the Na- 
tional Museum. These bones were chiefly of the jaws of elephants and 
of horses ; but, amongst them, M. Cuvier also found a fragment of the 
lower jaw of the left side of a hyena, containing four grinders ; a muti- 
lated canine tooth, and the inferior part of a humerus, well preserved. 
M. Cuvier, from the accurate knowledge which he possesses in com- 
parative anatomy, has been enabled to discover that the fossil hyena is 
of a different species from the common one of the Levant. The last 
molar tooth of the lower jaw, in the known hyena, is distinguished by 
a strongly marked conical point on the anterior inner angle, and 
which projects inwards towards the palate : but, in the fossil corre- 
sponding tooth, this projection does not exist. 
M. Cuvier was enabled to determine the fragment of a lower jaw, with 
the four molar teeth, to belong to the genus Flyena ; but he was also 
led to believe it to belong to a different species from the common hyena, 
from the three anterior teeth possessing a less longitudinal extent, in 
proportion to their width and height, than is observable in those of 
the common hyena, and from their lateral points being less developed, 
and particularly the anterior one, which was entirely wanting in the 
second tooth ; although it is very distinct in the common hyena. Cal- 
culating from the size of some fossil teeth, both from Canstadt and 
Fouvent, M. Cuvier concludes, that the animal to which they belonged 
must have exceeded the size of the common hyena one-fifth. 
In a fragment of the upper jaw, from Gaylenreuth, he found the third 
molar tooth, which, though decidedly of the hyena, was analogous with 
the fossil teeth of the preceding lower jaw, in being short from front to 
