35 
Troglodytes Troglodytes Simia 
Savagei. niger. Wurmbii. 
Adult | Adult | Adult | Adult | Orang.| Male. 
Male. | Female.| Female.| Male. | Female. 
in. lin. | in. lin. | in. lin. | in. lin. | in. lin. | in. lin. 
11 4/9 O*#,7 6|8 0;8 6/10 6 
Length of the head from the inion, or pos- 
terior plane of the occiput, to the mar- 
gin of the incisors .......-.+2.+-+eeererees 
Length of the head from the inion to the 
fronto-nasal suture .........seseceeeeeevers 
Length of the head from the fronto-nasal 
suture to the margin of the incisors ... 
Transverse diameter of the cranium at 
the post-auditory ridges ............seeee+ 
Length of the smallest lateral mre 
of the cranium behind the orbits ...... 
Length of the 08 frontis. ......-ssssceeeeeeees 
Length of the sagittal suture..............+.+. 
Distance between the temporal ridges...... 
Diameter of the face at the zygomata ...... 
Length of the zygomatic fossa ......+++...00+ 
Breadth of the zygomatic fossa.......-....++ 
Diameter of the face taken from the out- 
sides of the middle of the orbits ...... } 
Interorbital space .......-+....seeeeee faces aeec 
Lateral diameter of the orbit ............... 
Perpendicular diameter of the orbit......... 
Transverse diameter of the nasal aperture . 
Perpendicular diameter of the nasal aperture 
Distance between the infraorbital fora- 
SMETUT A Crantes testes .c+-teceregeassincsescsscn 
Breadth of the alveolar portion of the 
maxilla SUpeCTiO“ .....+-0.02000 maaeeaets Eis 
Distance from the inferior margin of “| 
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nasal bone to the inferior margin of 
the intermaxillary bones................+ 
Length of the bony palate . ................-- 4 
Distance from the anterior margin of the 
intermaxillary bones to the anterior 
palatal foramen .............seessseeeseenee 
Antero-posterior extent of the palatal 
process of the palate bone.............+- 
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 
molares, the bicuspides included. ...... } 
| Length of the crown of the canine tooth... 
Breadth of the enameled crown of the 
\ Canine tooth . ............s-scccsesesesasees 
} Interspace between the canine and in- 
cisor teeth, upper jaW........-..seeeeeeeee 
Distance from the anterior margin of } 
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the occipital foramen to the posterior 
margin of the bony palate ............... 
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_ * To front border of premaxillaries. 
+ This varies according to the outswelling of the zthmoidal cells: in one female skull of 
Trogl. niger the interorbital space was an inch across. 
} Of the alveolus. § Base mutilated. | Suture obliterated. 
