Zoological Society. 



73 



Length of the head from the inion, or pos- "j 



terior plane of the occiput, to the niar- V 



gin of the incisors J 



Length of the head from the imon to the 1 



fronto-nasal suture J 



Length of the head from the fronto-nasal \ 



suture to the margin of the incisors ... J 

 Transverse diameter of the cranium atl 



the post-auditory ridges J 



Length of the smallest lateral diameter"! 



of the cranium behind the orbits J 



Length of the osfrontis 



Length of the sagittal suture 



Distance between the temporal ridges 



Diameter of the face at the zygomata 



Length of the zygomatic fossa 



Breadth of the zygomatic ybs^fl! 



Diameter of the face taken from the out- 1 



sides of the middle of the orbits J 



Interorbital space 



Lateral diameter of the orbit 



Perpendicular diameter of the orbit 



Transverse diameter of the nasal aperture 

 Perpendicular diameterof the nasal aperture 

 Distance between the infraorbital fora- \ 



mina / 



Breadth of the alveolar portion of the 1 



maxilla superior J 



Distance from the inferior margin of the! 



nasal bone to the inferior margin of > 



the intermaxillary bones J 



Length of the bony palate 



Distance from the anterior margin of the "j 



intermaxillary bones to the anterior K 



palatal foramen J 



Antero-posterior extent of the palatal 1 



process of the palate bone J 



Breadth of the crown of the first incisor.., 

 Breadth of the crown of the second incisor 

 Breadth of the four incisors (upper jaw) ... 

 Length of the grinding surface of all the 1 



molares, the bicuspides included J 



Length of the crown of the canine tooth... 

 Breadth of the enameled crown of the"! 



canine tooth J 



Interspace between the canine and in-"^ 



cisor teeth, upper jaw 



Distance from the anterior margin 



the occipital foramen to the posterior 



margin of the bony palate 



Troglodytes 

 Savagei. 



Adult 

 Male. 



in. lin. 



11 4 



6 10 



lor y 



9 



3 



9 



nil 



9 



10 



11 



6 



3 

 9 



7 

 2 

 5 



3 1 



2 6 

 4 1 



1 1 



1 1 



10 



2 



3 



Troglodytes 

 niger. 



Simia 

 Wurmbii. 



Adult 

 Female, 



in. lin. 



9 0* 



6 3 



4 4 



5 6 



2 5 



3 7 



3 

 nil 



5 3 



2 



1 5 



4 8 



2 5 



2 7 



2 3 



3 4 

 10 



7 



5i 



4t 



1 6: 



2 7 



: 



+ 

 + 



u 



Adult 

 Female, 



Adult 

 Male. 



in. lin. 



7 6 



5 2 



3 8 



4 9 

 2 8 



7t 



1 4 

 1 3 

 1 



2 4 



2 3 

 2 10 

 10 



6 



in. lin. 

 8 



5 4 



3 10 

 5 1 



2 9 



2 10 

 2 8 

 nil 

 5 

 1 11 

 1 4 



4 4 



10 



1 5 

 1 3 

 1 



2 4^ 



2 6 



2 7 



3 1 

 1 



7 



6 



5 



1 H 



1 9* 



10 



7 



4 



Adult 

 Orang. 

 Female. 



n. lin. 

 8 6 



5 7 



4 4 



4 8 



2 6 



3 9 



1 8 



2 8 



8 



2 5 2 9 2 10 



in. lin. 

 10 6 



* To front border of premaxillaries. 



t This varies according to the outswelling of the aethmoidal cells : in one female skull of 

 Trogl. niger the interorbital space was an inch across. 

 X Of the alveolus. § Base mutilated. !| Suture obliterated. 



