FOSSIL REPTILES. 227 



a series of ten other vertebrae, which appeared to have consti- 

 tuted the lumbar, the sacrum, and the basis of the tail. Those 

 of the neck, back, and middle of the tail, left nothing but their 

 impressions. The space which they occupied does not appear 

 to have been sufficient for more than eight, so that the tail 

 could have had no more than twenty-two or twenty-three 

 vertebrae, unless it had been trunrated at the end. We might 

 also believe that this spinal column was not complete in front 

 when it was incrusted in the stone ; for there is by no means 

 sufficient room for the usual number of vertebrae in the cro- 

 codiles. 



The head is turned, presenting its lower face. The occipital 

 condyle is visible behind. On the two sides we find the zygo- 

 matic arches which terminate, as in all the crocodiles, in two 

 broad condyles for the lower jaw, and which are placed on the 

 same transverse line as the occipital condyle. 



The cranium occupies but a narrow space, and the interval 

 between it and the arches was furnished only with very 

 thin small plates, coming doubtless from the pterygoidean 

 laminae. The head grows narrow in front, not suddenly, but 

 by degrees, as in the crocodiles of Altorf and Honfleur, ending 

 in a pointed muzzle, covered in certain places by the remains 

 of the lower jaw. In these places, in the two jaws are observed 

 large pointed teeth, placed alternately, and crossing each other 

 narrowly. But in those places where the lower jaw had been 

 removed, the teeth of the upper were also taken away, and 

 nothing was visible but their deep alveoli, placed at the same 

 respective distances as the teeth themselves. There were 

 large fangs or tusks towards the point of the muzzle stronger 

 than the others. The enamel of these teeth was well polished. 



The vertebrae seem to have been placed on the side. 

 Each was three inches long. Near the place where the pelvis 

 should have been, was found, in digging into the stone, a por- 

 tion of the OS femoris, three or four inches long, and a very 

 small portion indeed of the ossa innominata, to which this 



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