870 ROBERT COLLETT, 



The lacrymalia are particularly large; their upper portion runs 

 in a Sharp keel into a short process in the orbital margiu. 



The palatina are incoraplete, with large and uneven foramina, which 

 extend forwards to the centre or hinder margin of m^. 



The bulla ossea is large, but the pars mastoidea is almost flat, 

 and shows almost no trace of being inflated behind the bulla as in 

 the preceding species. 



The zygomatic arch is broad and strongly built; its length 

 (measured from the opening of the ear to the foremost angle of the or- 

 bita) is longer than the length of the dental series in the upper jaw. 



The teeth. 



The dentition, as previously mentioned, is normal. 



In the upper jaw the incisors are all very slender and about equal 

 in length. The central pair are thus comparatively short, and but a 

 little stronger than the others, and almost vertically placed like these. 

 Between i ^ and i ^ i& a very short space. 



The canine is very long and curved. Its length (from the alveolar 

 border) is as great as the bases of m ^ and m ^ together. 



The premolars, which all have two roots, are close to the canines 

 and the molars. They are large; p ^ is the smallest, hardly larger than 

 i^, but with a distinct cusp in front of and behind the middle cusp; 

 p Ms a little larger, but in its formation is like the first. ^ ^ is the 

 largest, has about the height of the molars, but is compressed with 

 high central cusp, and the anterior cusp only slightly developed. 

 jP ^ is larger, than p ^ below, 



Of the molars the three foremost have the usual triangulär shape, 

 but the cusps are comparatively slightly pointed and rather low, without, 

 however, being rounded. Compared with the foregoing species, the 

 molars are smaller , both lower and with lesser bases. m ^ is very 

 narrow, with the usual short tubercle on its bind margin ; it is placed 

 more transversely in the jaw, than in the preceding species, in which 

 it is directed more obliquely backwards. 



In the lower jaw the incisors are normal ; the central pair barely 

 larger than the others. 



The canine is considerably shorter than in the upper jaw, but still 

 longer, than the incisors. 



The premolars are all separated by a slight space, as well as 

 from the canine. p * is the smallest, scarcely bigger than the incisors, 

 the two others gradually larger; p^ is the largest, and is situated 



