414 



THE HON. WALTER ROTHSCHILD ON 



[Dec. 13, 



family — Hylobatidte — and not be united with the great man-like 

 apes. Although I propose to deal mainly with the Chimpanzees, 

 I must allude to the genera Gorilla and Pongo, as I differ slightly 

 from Professor Matschie. 



In the first place, Professor Matschie himself gives only 



Table of Comparative Measurements 

 of the Skvills of Gorilla gorilla and G. gorilla matschiei. 



Sinder surface of Head : 



Greatest breadth at the Mastoid 



processes 144, 



Breadth above the Mastoid pro- 

 cesses 116, 



Length from centre of Crista 

 lambdoidea to basal edge of 



Foramen magnum 90, 



TForamen magnum : 



Length 



Breadth ■.••;■•• 



Breadth on outside of Occipital 



condyles 



JBasioccipital : 



Length from front edge of 



Foramen magnum 



Occipital condyles : 



Breadth at base 31, 



Breadth at anterior edge 



Vomer : 



Length 



Breadth 



Basisphenoid : 



Width at Foramen rotundum... 

 Width at apex of Petrous 



portions of Temporal 



Fterygoid 2)rocesses of Splienoid : 



Leng-tli 



Breadth, singlj' 



Breadth across 



Articular condyle ofLoiver Jatv : 



Width 



Coronoid process : 



Greatest width 



Width between Coronoid pro- 

 cess and Articular condyle . . . 

 Width from outside of Coronoid 

 process to outside of Articular 



condyle 



Nasals : 



Length 



Width 



Prema.viUa : 



Length • 



Breadth across the canines 



Zygoma : 



Breadth at molar portion 



Breadth at narrowest part 



147, 155, 162 mm. 

 120, 121, 123 mm. 



100, 101, 103 mm. 



30, 32, 32, 34 mm. 

 26, 28, 29, 30 mm. 



45, 45, 51, 51 mm. 

 45, 45, 46, 49 mm. 



32, 35, 38, 

 23, 24, 29, 



18, 19, 19, 

 16, 17, 18, 



58, 58, 58, 



32, 33, 85, 



64, 65, 68, 

 17, 18, 18, 

 60, 60, 60, 



32, 34, 36, 



26, 30, 30, 

 34, 34, 34, 



39 mm. 

 30 mm. 



23 mm. 

 19 mm. 



59 mm. 



35 mm. 



69 mm. 

 19 mm. 

 62 mm. 



36 mm. 

 34 mm. 

 41 mm. 



70, 73, 75, 79 mm. 



38, 40, 41, 42 mm. 

 28, 29, 33, 36 mm. 



31, 31, 34, 36 mm. 

 55, 70, 71, 73 mm. 



30, 32, 32, 38 mm. 

 16, 16, 17, 17 mm. 



Length of skull front of Arcus 

 superciUaris to front of Pre- 

 niaxilla 145,146,150,153 mm. 



170 mm. 

 163 mm. 



109 mm. 



40 mm. 

 35 mm. 



59 mm. 



35 mm. 



40 mm. 



20 mm. 



19 mm. 

 10 mm. 



62 mm. 



30 mm. 



51 mm. 



24 mm. 

 79 mm. 



42 mm. 



21 mm. 

 21 mm. 



56 mm. 



45 mm. 

 29 mm. 



39 mm. 

 90 mm. 



43 mm. 

 16 mm. 



160 mm. 



