90 THE COLISHE. 



Cranial and Dental Characters. 



As before mentioned the skull of this animal is very distinctly cha- 

 racterized. Instead of the dorsal surface of the skull showing a lyrate 

 sagittal elevation ending in a simple margin on either side, there is a 

 distinct, elevated, cord-like ridge running backwards in an undulating 

 manner from the postorbital process of the frontal to the occipital crest, 

 on either side ; these two lateral ridges enclose a lyrate space indeed, 

 but not a uniformly elevated tract. 



The mandible also is very differently shaped from that of any of the 

 Canida as yet here described. It has been said to show a subangular 

 lobe, but it seems to be rather the case that what has been called the 

 " subangular lobe " is an almost normally formed part, and that the 

 abnormality consists in the shape of the angle itself, which is small in 

 size and, as it were, pushed upwards towards the condyle of the jaw. 



The length of the fourth upper premolar compared with that of the 

 two upper molars is as 10.0 to 130. 



Centimeters. 



Basion to ovalion 2'3 



to sphenoideum 3'7 



Sphenoideum to gnathion 8'2 



Length of palate 6'1 



Breadth of 2'9 



Length of nasals 4'0 



Breadth of TO 



brain-case 4'5 



zygomata 7'1 



Length of Hil 0'3 



J? . . . 0-5 



^ 0-6 



1-0 



0-8 



0-5 



M.I 



Breadth of 5i_ 4 0'5 



MJ I'D 



M.2 0-8 



