EINAR LÖNNBERG, THE GENUS POTAMOGHOERUS. 27 



and very dar k brownish-black bristles». The material was 

 rather unsatisfactory for establishing a new subspecies but 

 tlie locality gave some information, and Bush Pigs from Kili- 

 manjaro have afterwards been called P. ch. dcemonis by W. 

 RoTHSCHiLD who 1906 stated that it was recognisable »by its 

 intense black colour» ^ and by the present author who found 

 a young animal to be" mixed black and rusty on the sides 

 with rusty red dominating on the back and forehead, 

 and black on the sides of the neck, on the chest and on 

 the legs.- 



The skull of the type specimen, the measurements of 

 w^hich are recorded on the accompanying table (II), proves 

 to be small, its upper mesial length being only 323 mm., 

 but this may be ascribed to its youth. The parietal region 

 is narrow only 18 mm. or 5,5 % of the length of the skull, 

 but the smallness of this measurement as well might to some 

 extent be due to its youth. I was therefore very uncertain 

 about this animal till I had the opportun! ty of seeing in the 

 Zoological Museum, Berlin, a skull of an adult boar from 

 the northern side of Kilimanjaro. This one had a mesial length 

 of only 311 mm. and the width of its parietal flat area was 

 18 mm., thus exactly the same as in Major's type. It is 

 consequently proved by this that P. ch. dcemonis really is a 

 somewhat dwarfed and dark race of Bush Pig inhabiting 

 Kilimanjaro, and characterised by a narrow parietal region 

 measuring about 18 mm., or about 5,5 — 5,9 % of the upper 

 mesial length of the skull. This characteristic is the more 

 apparent as the Bush Pigs of the P. choeropotamus-grou^p, as 

 has been mentioned above, have a broader parietal area in 

 the nortliern parts of German East Africa than their allies in 

 the Southern parts of the same country and those further 

 south till Natal is reached. A suspicion that P. ch. d(Emonis 

 should have something to do with P. ch. nyasce which also 

 has a narrow parietal region must be dismissed not only for 

 geographic but also for morphological reasons. The latter 

 is a much larger animal with a longer head and especially 

 a longer preorbital region of the skull. 



^1 Proc. Zool. Soc. 1906 p. 632. 



- Wiss. Ergeb. d. Schwed. Zool. Exp. Kilimanjaro — Meru 1905 — 1906 

 u. Leitung von Prof. Y. Sjöstedt. 2. Mammals p. 33. 



