56 



zlc The nasals arc large, thick, and strong. Proportionately they exceed in 

 length those of the Palaeothere, the rhinoceros, and the tapir. If I mis- 

 take not a fracture for a suture, their posterior extremity reaches as far as the 

 position of the fore part of the orhits, and their free extremity projects quite 

 as much as the jaws. They are strongly arched transversely and are more 

 abruptly rounded and thick at the lateral borders. They gradually narrow 

 forward and terminate in a blunt extremity, which is nearly straight but 

 rounded at the outer angles. Posteriorly, they include a deep and wide an- 

 gular notch, which receives a corresponding angular prolongation of the 

 frontals. 



The lateral nasal notch resembles that of the rhinoceros, but is propor- 

 tionately of greater depth, and in this respect also resembles that of the 

 Palaeothere. Its exact extent cannot be determined on account of the mu- 

 tilated condition of the specimen. 



The upper jaw in its form and proportions is nearly like that of the Palaeo- 

 there. It is of greater proportionate depth below the orbit, and exhibits a 

 greater swell at the border of the nasal notch, due to the greater size of the 

 canine teeth. The infra-orbital foramen is large, and is situated over the 

 position of the last premolar. The hard palate is flat along the middle' an- 

 teriorly. Its posterior part is destroyed in the specimen, so as to prevent 

 the determination of its extent. 



The incisive foramina appear to be comparatively small and widely separated. 

 They appear also to be circular, and continuous with grooves descending for- 

 ward to the incisive alveoli. 



The teeth form a series as unbroken nearly as in Anoplotherium. They 

 are all mutilated in the specimen, but the crown of the last premolar, and the 

 molars are sufficiently well preserved to exhibit the characteristics of Palseo- 

 syops as already described. 



Measurements of the specimen, for the most part approximative on account 



of its distorted condition, are as follows : 



Length of jaw from back of last molar to front of incisive alveoli 9 inches. 



Length of face from the anterior orbital margin to the end of the nose. . . 7 inches. 



Length of the nasals in the median line . , . , 5i inches. 



Breadth of the nasals together at their middle 3| inches. 



Length of space occupied by the molar series 6£ inches. 



Length of space occupied by the true molars , . . 3f inches. 



Breadth of last premolar T - . ■ lines. 



Width of last premolar. .,--.. 12 lines. 



