A NEW FOSSIL RUMINANT GENUS. 11 



either removed or concealed in stone. In front, the mutilation of the bone, 

 at the muzzle, does not allow it to be seen, how the incisive bones were 

 connected with the maxillaries : but it appears that they did not reach so 

 high on the maxillaries as the union of the latter with the nasals. The 

 same cause has rendered obscure the connections of the maxillaries with 

 the nasals, and the depth and size of the nasal echancrure or sinus. 



The jugal bone is deep, massive and rather prominent. Its lower 

 border falls off abruptly in a hollow descending on the maxillaries : the 

 upper enters largely into the formation of the orbit. The posterior orbital 

 process unites with a corresponding apophysis of the frontal to complete the 

 circuit of the orbit behind. The zygomatic apophysis is stout and thick, 

 and rather flat. No part of the arch, either in the temporal or jugal 

 portions is prominent : the interval between the most salient points being 

 greatly less than the hind part of the cranium, and slightly less than the 

 width between the bodies of the jugals. 



The extent and form of the lachrymals, cannot be made out, as there 

 is no trace of a suture remaining. Upon the fossil, the surface of the la- 

 chrymary region passes smoothly into that of the adjoining bones. There is 

 no perforation of the lower and anterior margin of the orbit by lachrymary 

 foramina, nor any hollow below it indicating an infra-orbital or lachrymary 

 sinus. It may be also added, what was omitted before, that there is no 

 trace of a superciliary foramen upon the frontal. 



The orbits are placed far forwards, in consequence of the great pro- 

 duction of the cranium upwards, and the shortness of the bones of the face. 

 Their position is also rather low, their centre being about 3.6 inches below 

 the plane of the brow. From a little injury done in chisseling off the stone, 

 the form or circle of the different orbits does not exactly correspond. In 

 the one of the left side, which is the more perfect, the long axis makes a 

 small angle with that of the plane of the brow: the antero-posterior dia- 

 meter is 3.3 inches, and the vertical 2.7 inches. There is no prominence 

 or inequality in the rim of the orbits, as in the Ruminantia. The plane 



