OBEODON OF NEBRASKA. 549 



ADMEASUREMENTS. 



Lines. 



Breadth of face at the infra-orbitar foramina, .... 19 J 



" " above first premolars, ..... 19J 



Height of face from infra-orbitar foramina to angular processes of os frontis, 16 

 Breadth of nasal bones at latter processes, . . . . .10 



Length of series of superior molars, . . . . 43 J 



" << true "... . 23 \ 



3. A face, apparently of a male, containing all the molars of both sides, except the first premolar. 



ADMEASUREMENTS. 



Lines. 



Breadth of face at infra-orbitar foramina, . . . . 19 \ 



" " above first premolar, . . . . 19 J 



Height of face from infra-orbitar foramina to angular processes of os frontis, 14 

 Length of series of molars, ....... 41 



4. A fragment of a face and forehead. 



ADMEASUREMENTS. 



Lines. 



Breadth of face at infra-orbitar foramina, . . . . 1 7 J 



" " first premolar, ...... 16:} 



Hcight from infra-orbitar foramina to anterior angular processes of os frontis, 12 \ 

 Breadth of nasal bones at the latter processes, . . . .11 



5. A fragment of a face and forehead of an individual just reaching adult age, containing on one side 

 the permanent true molars protruded, and fragments of the second and third permanent premolars, which 

 were just on the point of eruption. 



6. A fragment of the face of a young animal containing on both sides portions of the temporary molars, 

 the two succeeding permanent true molars fully protruded, and the last true molars concealed within the 

 jaw. 



7. The greater portion of a face and lower jaw, containing all the molars except one. 



ADMEASUREMENTS. 



Lines. 



Breadth of face at infra-orbitar foramina, . . . . .20 



Height " " " " to angular processes of os frontis, 16 



Length of series of superior molars, . . . . .20 



" " inferior " . . . . . .22 



8. A head of a young animal, with the right side of the lower jaw and angle of the left, the zygoma, 

 end of the nose and right superficial portion of the face, broken away. The right upper and the left lower 

 jaw contain all the molars nearly perfect, consisting, in the former, of the first permanent (?) premolar, 



