26 ARKIV rÖR ZOOLOGI. BAND 7. NiO 6. 



there they are narrowed as well in the posterior parts (about 

 45 mm.) as especially in front where the combined breadth 

 at the nasal opening is only 28 mm. The sides of the maxil- 

 lary are concave, and the apophyses above the canines are 

 large and directed backwards so that the vertical through 

 their posterior end passes through the hindmost portion of 

 p.^, but they do not quite reach the level of the nasal suture. 

 In the upper jaw 3 premolars are found on either side, and 

 in the lower jaw on one side just as many, while on the other 

 only p^ and p^ remain. 



Ramus horisontalis of the lower jaw is very thick and 

 heavy with a transverse diameter of about 29 mm., but on 

 the other hand ramus adscendens is not very broad only 

 measuring about 60 mm. When seen from the side the whole 

 skull gives the impression of being long and low. 



The type of Major's P. ch. nyasce is stated to be from 

 Lake Mweru. Other specimens of the same kind are from 

 Zomba. The specimen received to the Natural History Mu- 

 seum in Stockholm from Rowland Ward is labeled »Cham- 

 bezi River N. E. Rhodesia», which appears to indicate that 

 this race is distributed far to the south of the original type 

 locality, Lake Mweru. It is evident that Potamochoerus clioe- 

 rop. nyasce has its native country to the west of P. ch. john- 

 stojii, and to the northwest of P. ch. maschona, but to judge 

 from the material in British Museum Nat. Hist. it appears 

 as if the latter race should extend into N. E. Rhodesia as 

 well and thus meet P. ch. nyasoi there. If the areas of dis- 

 tribution of the two races overlap to some extent is for the 

 present difficult to say, but even this might be possible if 

 they should live in different localities. It is also possible 

 that the females of both races are more alike than the males, 

 as is the case with other races, and this makes it for the 

 present more difficult to indicate the exact area of distribu- 

 tion of either race. 



Potamochoerus choeropotamus diemoiiis Major. 



A semiadult female Bush Pig from Kilimanjaro was 

 named as above by Major 1897 (1. c. p. 367) who stated 

 that it was a small form and that it was »covered with long 



