KUNQL. SV. VET. AKADEMIENS HANDLINGAE. BAND 58. N;0 2. 109 



Explanation of plates.' 



PI. I. Fig. 1. Adult male of Qorilla beringei mikenensis n. subsp. (n:o 164) shot by Capt. Elias Aekhenius 

 on the volcano Mikeno, Virunga mountains, "/s 1914. 



Fig. 2. Immature male and female Gorillas of the same race (n:o 39 & 40) from the same locality, "/is 

 1913. 

 PI. II. Fig. 1. Frpnt view of the skull of old male Qorilla beringei mikenensis n. subsp. (n:o 164), dimin- 

 ished. 



Fig. 2. Palatal view of Ihe same, diminished. 

 PI. III. Fig. 1. Profile view of the skull of old male Qorilla beringei mikenensis n. subsp. (n:o 164), diminished. 



Fig. 2. Profile view of the skull of semiadulb male Qorilla beringei mikenensis n. subsp. (n:o 165), 

 more diminished than fig. 1. 

 PI. IV. Pig. 1. Front view of the skull of semiadult male Qorilla beringei mikenensis n. subsp. (n:o 165), 

 diminished. 



Fig. 2. Profile view of the skull of young male Gorilla of the same species, with milk -dentition 

 and first molars (n:o 166), diminished. 



Fig. 3. Front view of the same as fig. 2, diminished. 



Fig. 4. Palatal view of the same, diminished. 

 PI. V. Fig. 1. Front view of skiiU of old male Anthropopithecus cf. cottoni Matschie (n:o 70) from Rutshuru, 

 V2 1914, diminished. 



Pig. 2. Profile view of the same. 



Fig. 3. Front view of a female Chimpanzee skull (n:o 161) of the same race and from the. same locality, 

 with small orbits, diminished. 



Fig. 4. Front view of a female Chimi)anzee skull (n:o 160) of the same race and from the same lo- 

 cality, with large orbits. 

 PI. VI. Fig. 1. Palatal view of the skull of old male Arithropopitheous cf. cottoni Matschie {n:o 70) from Rut- 

 shuru, diminished. 



Fig. 2. Lower jaw of female n;o 178 of the same race of Chimpanzee from the same locality, to show 

 supernumerary molars on both size, diminished. 



Fig. 3. Lower jaw of female n:o 160 of the same race of Chimpanzee from the same locality, to show 

 supernumerary molar on left side, diminished. 



Fig. 4 a. Right molar series of lower jaw of female Chimpanzee n:o 224; 

 b. Left molar series of lower jaw of female Chimpanzee n:o 181. 



These two figures have been photographed at the same time and on the same plate to 

 prove the great variation in the size of the teeth. 



Fig. 5. Profile view of skull of Colobus ellioti Dollman, J' from Beni {n:o 203). 

 PI. VII. Pig. 1. Skull of young male of Papio tessellatus Elliot from Rutshuru, with only milk-dentition. »/« 

 nat. size. 



Fig. 2. Skull of young male of the same species, with first molars developed, "/t nat. size. 



Fig. 3. SkuU of semiadult male of the same species, last molar not yet visible, '/w n^it. size. 



Fig. 4. Skull of adult male of the same species. '/lo nat. size. 



Pig. 5. Skull of adxilt female of the same species, '/'o nat. size. 

 PI. VIIT. Fig. 1 a (n:o 23) and b (n:o 25). Profile views of skulls of two male specimens of Gercopiihecus sohmidti 

 enkamer Matsci-iib shot the same day, "/o 1913, at Rutshuru by Captain Elias Arrhenids. 

 Both photographed on the same plate at the same exposure. 



Fig. 2 a (n:o 23) and 6 (n:o 25). Front views of the same skulls as the foregoing. Both photographed 

 on the same jjlate at the same exposure. 



Fig. 3. a {n:o 19) and b (n:o 24). Profile views of two female skulls of Cereopitheous schmidtii en- 

 kamer Matschie from Rutshuru. Both photographed on the same plate at the same exposure. 



^ The exact measurements of the figured skulls etc are to be found in the text. 



K. Sv. Tet. Akad. Handl. Band 58. N:o 2 14* 



