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



41 



small process on the f rontal ridge över each orbit near end of nasals», about which the 

 author quoted speaks, is also present, but it is nötning cliaracteristic to this race of Ba- 

 boons, nor to Baboons as for instance a similar process can be seen in Cercocebus skulls 

 as well (ef. Pl. XII, fig. 2). 





nd. 



ö" semiad.' 



ef juv." 



ef pull. 3 



$ ad. 



d" ad. 4 



216 



mm. 



171 mm. 



143,6 mm. 



1 17,3 mm. 



164,5 mm. 



210 mm. 



175 



» 



141 



123 



107,4 » 



137,5 » 



172 



155 



» 



119 



92,6 » 



CO 



111 



154 



129 



» 



101 



90 



74,3 » 



100 » 



121 » 



99 



» 



73 



55 



38 



70 



95 



81 



» 



83 



74,5 » 



71,6 



78 



85,5 » 



58 



» 



59,5 » 



54,7 » 



53,0 » 



59 » 



57,7 » 



14 



» 



8 



6,8 



4.7 , 



9,3 >» 



11,9 



7.i 



)> 



53 



3S,3 » 



33,3 » 



59 



72 



57,r> 



» 



45 



40,6 » 



32,2 » 



40,4 » 



52 



135 



» 



102 » 



74, s » 



61 



106. 6 



133,5 



105 



• 



104 



97 



90 



101 



106 



'.t:. 



» 



74,5 » 



67,5 » 



53,3 » 



74.3 » 



91 » 



67,3 



t> 



43 



29 » 



21 



46,3 » 



65 



45 



» 



41 



33 



23,8 » 



34 



41 



31 



» 



— 



— 



— 



25 » 



29,5 » 



53 



» 



— 



— 



— 



49 



54,6 » 



t '■•i 



» 



— 



— 



— 



56 » 



— 



Total length 



Occipitonasal length mesially 



Basal length 



Zygomatic width 



Palatal length (inside between median 



ineisors) 



Breadth of brain-case 



Least postorbital width 



Interorbital width 



Length of nasals mesially 



Width of snout aeross first premolar 

 Distance from mesial point of superciliary 



ridge to tip of premaxillary .... 

 Distance from the same point as above 



and the occiput (without crest) . . 

 Distanco between outer brims of the or- 



bital walls on a leve] witli the middle 



of the orbit 



Distance from lower börder of orbit to 



mesial tip of nasals 



Width of upper surface of muzzle halfway 



between orbits and tip of nasals . . 

 Width of palate between last molars . 



Length of upper molar series 



Length of lower molar series 



The nasals of the females and the young animals are anteriorly flat and not raised. 

 (ef. Pl. VII). In the females the lateral parts of the snout are not swollen, nor forming 

 elevated ridges. In the males on the other hand this masculine characteristic begins 

 to show at a very early period. Already in the quite young male with only milk-dentition 

 a swelling or inflation is apparent in the upper anterior portion of the maxillary ( Pl. 

 VII, fig. 1). In the young male with the first molar developed this inflation is still larger, 

 but it is yet evenly rounded off (Pl. VII, fig. 2). In the semiadult with the second molar 

 developed the swellings are alread}^ very large (Pl. VII, fig. 3); there is a deep and broad 

 pit on the sides of the maxillary above the roots of the molars, and the upper surface 

 of the rostrum displays longitudinal grooves betw r een the elevated nasals and the lateral 

 swellings. The latter have, however, still a smooth surface and are broadly rounded off 

 on the sides. Finally in the adult (Pl. VII, fig. 4) the rostrum gets its definite shape; the 



1 Last molar not yet visible, c not nmeh higlier t lian first premolacr. 



2 Only first molar developed. de present. 



3 Only milk-dentition. 



4 From Hoima, Uganda. 



K. Sv. Vet. Akad Hiiudl. Band 58. N:o 2. 



