12 ARKIV FÖR ZOOLOGI. BAND 7. NIO 6. 



white at the base and reddish at the end>> — . This 



quotation from Du Chaillu's description suffices to prove 

 a certain difference in colour of his Bush Pig as well from 

 the other races of the P. porcus-gvoup as from P. p. 

 uhangensis. The latter has a white snout but the same organ 

 is black in P. albifrons, although the head otherwise has 

 much white. Unfortunately the author of P. albifrons has 

 not communicated any description or measurements of the 

 skull that could be compared with the corresponding ones 

 of P. p. uhangensis. For the present we have therefore to 

 rely only on colour characters for »P. albifrons» which must 

 be regarded to be only a subspecies of P. porcus. The native 

 country of P. p. albifrons is according to Du Chaillu »the 

 high table-lands between Cape Lopez and Cape St. Catherine 

 and on the head of Fernand-Vaz River», thus the Western part 

 of the present French Congo. De Pousargue has låter on 

 (1897) described a female specimen of Red Bush Pig from 

 Ogowe, which according to the locality probably belongs 

 to the same race as P. p. albifrons and this author, too, 

 spöke about »une teinte blanche» »sur la region interoculaire 

 et la partie anterieure du front, »^ but he regarded evidently 

 P. albifrons Du Chaillu as merely synonymous with P. 

 penicillatus Schinz (= P. porcus Lin.). This interpretation 

 of De Pousargue is quite easy to understand the more so 

 as ScHTNZ as well found the interorbital region white in 

 penicillatus. 



The present author has recently received a couple of 

 skull of »rufous» Bushpigs from Lower Congo coUected at 

 Mukimbungu by the Swedish Missionary Mr. K. E. Laman. 



Unfortunately there were no skins to these skulls, and 

 it is thus no possibility to tell whether they belong to Du 

 Chaillu 's »albifrons» or not. To judge from the locality 

 this is, however, not at all improbable. The skulls prove 

 at the first look that they belong to a race which is differ- 

 ent, as well from the typical Pota^noclioerus porcus as still 

 more from the Cameroon-race P. p. pictus. The parietal 

 flat area of these Bush pigs from Congo is comparatively 

 quite narrow, measuring only 31,5 mm. as well in the old 



^ Ann. Se. Xat- Zool. sér 9, T 4. Paris 1897. p. 90. 



