46 
SOME EAST AFRICAN PIGS 
young and the front is whitish. The well-marked depression 
in the skull of the adult is absent, the cranium being rounded. 
Four incisors are present in the lower jaw and two above. 
In some specimens of Giant pig much variation is observed, 
the teeth differing very much. 
Certain Giant pigs have large and well-developed incisor 
teeth 
1-1 
2 - 2 ' 
In these pigs the premolars and molars are strongly 
tubercular, and on the skin, especially on the belly and rump, 
much more white hair is found, the ears being usually covered 
inside with long yellowish hair. The teeth in two specimens 
were as follows : — 
An adult boar — Incisors 
2-2 
very strongly developed ; 
^ ][ 2 2 8 8 
canines ; premolars much worn ; molars very 
1 — 1 2 — 2 8 — 8 
strongly tubercular ; length of fresh skin, 7 feet 5 inches. 
- — - strongly developed ; 
2 — 2 
An adult sow — Incisors 
canines ; premolars ; molars ; length of 
1-1 F 2-2 2-2 6 
fresh skin, 7 feet | inch. 
The Bush pig ( Potamochoerus choeropotamus ) is common 
throughout East Africa, but is seldom seen owing to its noc- 
turnal habits. 
Its general appearance has been described above. The 
skull is singularly compressed and narrow. The teeth very 
nearly approximate to the domestic pig with flat grinding 
surfaces. The tusks are small, and the upper are set horizon- 
tally with a broad wearing surface for the lower tusk. 
This pig has the habit of turning up large areas with its 
snout for feeding purposes. The land chosen for this is usually 
a marshy clearing in the forest. They are usually met with in 
small family parties or in pairs, but owing to the dense nature of 
the cover they inhabit are difficult to shoot. 
The Red River hog has been described above. 
