KUNGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 58. N:Q 2. 109 



Explanation of plates. 1 



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Pl. I. Fig. 1. Adiilt male of Gorilla beringei mikenensis n. subsp. (n:o 164) shot by Capt. Elias Arrhenius 



on the volcano Mikeno, Vininga mountains, 14 /s 1914. 

 Fig. 2. Immature male and female Gorillas of the same race (n:o 39 & 40) from the same loeality, 2T /i2 



1913. 

 Pl. II. Fig. 1. Front view of the skull of old male Gorilla beringei mikenensis n. subsp. (n:o 164), dimin- 



ished. 

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

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

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



more diminished than fig. 1. 

 Pl. IV. Fig. 1. Front view of the skull of semiadult male Gorilla beringei mikenensis vi. subsp. (n:o 165), 



diminished. 

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



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



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



Palatal view of the same, diminished. 

 Pl. V. Fig. 1. Front view of skull of old male Antliropopithecus ef. eottoni Matschie (n:o 70) from Rutshuru, 



8 /s 1914, diminished. 



Profile view of the same. 



Front view of a female Chimpanzee skull (n:o 161 ) of the same race and from the same loeality, 



with small orbits, diminished. 

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

 eality, with large orbits. 

 Pl. VI. Fig. 1. Palatal view of the skull of old male Antliropopithecus ef. eottoni Matschie (n:o 70) from Ru1 - 



shuru, diminished. 

 Fig. 2. Lower jaw of female n:o 178 of the same race of Chimpanzee from the same loeality, 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 loeality, 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. 



Thesc two figures have been photographed a t the same ti me and on the same plate to 



prove the great variation in the size of the teeth. 



Profile view of skull of Colobus ellioti Dollman, J* from Beni (n:o 203). 



Skull of young male of Papio tessellatus Elliot from Rutshuru, with only milk-dentition. 3 /i 



nat. size. 



Skull of young male of the same species, with first molars developed. 3 /.« nat. size. 



Skull of semiadult male of the same species, last molar not yet visible. 7 /io nat. size. 



Skull of adult male of the same species. '/w nat. size. 



Skull of adult female of the same species. 7 /io nat. size. 

 1 a (n:o 23) and /; (n:o 25). Profile views of skulls of two male specimens of Cercopithecus seJimidti 



cnkamer Matschie shot the same day, lk j s 1913, at Rutshuru by Captain Elias Arrhenitjs. 



Both photographed on the same plate at the same exposure. 

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



on the same plate at the same exposure. 

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

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







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Pl. 



VII. 



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Pl. 



VIII. 



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1 



1 The exact measurements of the figured skulls etc are to be fonnd in the text. 



K. Sv. Vet. Akad. Harull. Band 58. N:o 2 14* 



