16 SOUTH AFRICAN MAMMALS 



characters would persist in the adult animal. The 

 example is now 6 years old and, I should saj', fully 

 adult; I am describing it as well as I can from a living 

 specimen. I have since received a skin and skull from 

 a friend at Marandellas ni Mashonaland, who told me, 

 before he saw our example, that their Baboon was dif- 

 ferent from the Chacma, and that it is common in 

 that neighbourhood, but not easy to obtain on account 

 of its wariness and the hilly nature of the regions it 

 frequents. The receipt of the skin and skull confirms 

 my opinion as to the novelty of the species. The skull 

 appears to be intermediate in general characters betw^een 

 the Chacma and Yellow Baboons, and can be described 

 as follows : — 



Skull of Bliodesian Baboon. — Parietals not so rounded 

 or high as in porcarius, more like those of cynocephalus; 

 sagittal crest more developed, although in very old 

 Chacmas this is more advanced than that of the example 

 on the accompanying plates ; frontals wider ; supra- 

 orbital ridge well developed ; squamosal not so deeply 

 dented as that of the Chacma. Nasals long, and broader 

 than those of the Chacma, the nasal opening or orifice 

 being much wider and more open than that of the 

 Chacma, resembling in this detail more the skull of 

 the Yellow Baboon ; maxillae higher, with the ridges 

 more pronounced than those of the Chacma Baboon. 



Measurements (in millimetres). — Total length of ^kull, 

 217; zygomatic width, 120; occipito-nasal length, 171; 

 intertemporal width, 61 ; medium length of nasals, 77 ; 

 length of upper canine, 40 (tips badly worn) ; length of 

 upper molar series, (31 ; lower molar series, 82 ; length of 

 mandible, 162. 



As will be seen from the above, the skull — like the rest 

 of the animal — partakes of the characters of both the 

 Chacma and Yellow Baboons, 



