278 BABYROUSSA CHAP. 
male. In the Wild Boar there is a hint of this, which is carried 
still further in Phacochoerus ; but in Babirusa the wpper tusks 
turn upwards before they leave the substance of the jaw, for 
which reason they appear to arise on its dorsal surface; the 
lower tusks are nearly as long. It has been found that the 
young of this Pig are not striped as are those of other Pigs. 
By means of the curved upper tusks this animal has been said by 
old writers to suspend itself to branches of trees, just as does by 
his downwardly-projecting tusks the male Chevrotain! There is 
but one species, B. alfurus. 
From Sus proper the African and Malagasy Potamochoerus, 
including the Red River Hog, is barely separable generically. 
Their principal claim to generic distinction les in the existence 
of a horny outgrowth arising from a bony apophysis above the 
canine in the male. These have been compared to the osseous 
“horn cores” in the extinct Dinocerata. 3ut the Javan Sus 
verrueosus Shows at least the beginning of a similar modification. 
The popular name of the animal is derived from the fine rufous 
colour of its pelage, not seen, however, in all the species. Dr. 
Forsyth Major! recognises five species, of which only one is from 
Madagascar. 
Fam. 3. Dicotylidae.—The Peccaries are generally placed in 
Fic. 145.—Peccary. Dicotyles tajacu. x %. 
a different family from that of the other Pigs. This family, 
1 «On the Species of Potamochoerus,” Proc. Zool. Soc. 1897, p. 359. 
