PIGS. 
39 
The Pigs, or Siiidce (Cases 37-40), are distinguished by their 
long snout, fattened in front, small eyes, four-toed feet, short 
tails, strongly- built bodies, and in disposition by their remarkable 
courage and ferocity. They are represented in the Old World 
by the genus Sus, of which the Wild Boar of the continent of 
Europe may be looked upon as the most typical species. This 
animal, unlike its domesticated descendant, our Common Pig, is 
covered all over with thick grizzled hair, has a longer and narrower 
head, and great projecting tusks, with which it can rip up and kill 
a man at a stroke. The species is spread all over Europe (now 
exterminated in England), North Africa, and Western Asia, being 
replaced in China and India by another very closely-allied animal, 
almost identical in external appearance {Sus cristatm). 
Other noteworthy Old-World species are: — The Papuan Pig {Sus 
papuensis) of New Guinea (Case 38) ; the Wart-Hog {Phacochoerus) 
and the peculiarly-coloured Biver-Hog {Potamochcerus) of Tropical 
Africa (Cases 37 and 38); the Babirusa {Babirusa aJfurus)oi Celebes 
(Case 40, above), an extraordinary hairless species, with long, 
upwardly-curved tusks, which in old age may grow so long as to 
describe an almost complete circle. The Pygmy Hog {Sus salvanius), 
of Nepal and Assam, is noticeable for its diminutive size, being 
seldom more than one foot in height and two in length; but is in 
other respects quite similar to the ordinary Pigs. 
In the New World, Pigs are represented by the Peccaries 
{Dicotyles) (Case 39), animals much smaller than an ordinary Wild 
Boar, and differing in their skulls and dentition from the Old-World 
Suidse. Especially noteworthy is the fact that the upper canine 
teeth do not project outwards and upwards, and are therefore less 
formidable weapons than the Boar’s tusks ; but, notwithstand- 
ing this, the Peccaries are more dangerous to man than any other 
of the Pig-tribe, as they herd together in bands of from 15 to 40, 
and make most determined attacks on any person the moment they 
are aware of his presence ; unless he is able to take refuge in a tree, 
or to kill nearly the whole of the band, he is very likely to fall a 
victim to their ferocity. They are themselves preyed upon by the 
Jaguar and Anaconda. 
The second great group of the Artiodactyles consists of the 
Ruminants, and contains (1) the Tylopoda or Camel tribe, (2) the 
