EINAR LÖNNBERG, THE GENUS POTAMOCHCERUS. 7 



which afterwards has been extensively used in the zoological 

 literature. Schinz gave a good description, and his type is 

 said to be from tiie Gold Coast. As far as can be ascer- 

 tained at present »penicillatus» must be regarded as entirely 

 synonymous with »vorcus.» In the year 1852 Gray described 

 a new species, as he believed, of »Wart Pig» from Cameroons 

 and he called this animal^ with the specific name »pictiis». 

 Låter on Gray himself withdrew this name and made it 

 synonymous with penicillatus Schinz, and porens Linn^us. 

 Gray's type specimen (B. M. 60. 7. 22. 10) is, however, still 

 kept in the British Museum Nat. Hist. where I have had 

 the opportunity of measuring it and found it to be provided 

 with a comparatively very broad parietal flat region. This 

 fact together with the origin from Cameroons proves that, 

 if further researches strengthen the supposition that the 

 broadheaded Bush Pig constitutes a separate subspecies 

 inhabiting the Cameroon coast district, this must be called 

 Potamochoerus porens pictus (Gray). 



Still another name has been given to a Bush Pig from 

 West Africa viz. Potamochoerus albi fröns Du Chaillu^ but 

 this which has a more southern habitat forms probably a 

 subspecies of its own, as will be discussed låter on. 



The dimensions of the skulls of P. porcus and P. p. pictus 

 not already discussed may be seen from the table of mea- 

 surements (I). The premolars are rather large and appear 

 to be only little reduced in these pigs. In two males from 

 Cameroons in the Natural History Museum in Stockholm as 

 well as in a male from West Africa and a semiadult female 

 from Liberia in the Zootomic Institute, Stockholm, only p^ is 

 löst above and below, but in a female from Cameroons p-z of 

 the lower jaw has disappeared as well. 



To the descriptions found in the literature the following 

 notes concerning the colour may be communicated. An 

 adult boar from Cameroons mounted in Brit. Mus. Nat. Hist 

 is typically coloured. The forehead between the eyes and 

 the ears and extending forward beyond the former is deep 

 black, the ears are black with the upper edge white and the 

 tuft mostly white. Otherwise the animal is rufous red with 

 white whiskers and white dorsal crest, and with dark legs 



' Ann. & Mag. >s^at Hist. ser. 2 Vol. X. p. 281., 



- Proc. Boston Soc. Nat. Hist. Vol. VII p. 301, Boston 1861. 



