207 



Measurements of the jaws, and teeth of M. rusticus are as follows 



Lines. 



Distance from upper incisors to back of last molar 



Length of space occupied by upper series of molar teeth. . . 



Length of space occupied by upper premolars ,, 



Length of space occupied by upper molars 



Breadth of upper jaw outside of canines 



Breadth of upper jaw outside of second premolars 



Breadth of upper jaw outside of second molars 



Breadth of upper jaw at inner side of infra-orbital foramina 



Breadth of face at lower margin of the orbits 



Distance from lower incisors to back of last molar 



Length of space occupied by lower series of molar teeth . . . 



Length of space occupied by lower premolars 



Leugth of space occupied by lower molars 



Depth of lower jaw at symphysis 



Depth of lower jaw below last premolar 



Depth of lower jaw below second molar 



Width of condyle of lower jaw 



62 

 53 

 22 

 31 

 22 

 24 

 30 

 20 

 55 

 62 

 IS 

 17 

 31 

 29 

 10 

 22 

 19 



Antero- 

 posterior. 



Transverse. 



Diameter of upper canine 



Diameter of lower canine 



Diameter of second upper premolar 

 Diameter of third upper premolar . . 

 Diameter of fourth upper premolar 

 Diameter of first upper molar. 

 Diameter of second upper molar . . . 



Diameter of third upper molar 



Diameter of first lower premolar . . . 

 Diameter of second lower premolar 

 Diameter of third lower premolar. . 



Diameter of first lower molar 



Diameter of second lower molar . . . 

 Diameter of third lower molar 



11 



Lines. 

 4g 

 5 



6 

 5 



S£ 

 -12 



11 

 5 

 6 



H 



n 



i 



10 

 15J 



Zhicn. 



4 

 5 

 6* 



10-10.', 



loi 



5 

 (i 



n 



7 



Of other bones referable to Merycochcerus rusticus, the collection contains 

 the following: 



Portions of several scapulae. The glenoid cavity is oval, and measures 11 

 lines in its short diameter, and 15 lines in its long diameter, including the 

 coracoid process. 



