SUIDE 283 
tooth. In most species the occipital crest is more nearly vertical 
than in the skull represented in Fig. 104. 
This genus occurs at present under three principal modifications 
or subgenera. 
A.—Sus proper comprises a number of animals 
found in a wild state throughout the greater part 
of Europe (except where extermin- 
ated by human agency), the north 
of Africa, southern continental 
Asia, and the 
great islands of 
the Malayan 
archipelago, 
Formosa, and 4 
Japan. The fol- 
lowing among 
others have 
been admitted 
by many zo- 
ologists as dis- 
tinct species : 
PN 
Y, @ ” 
—Sus ser of a, Fic. 103.—Left lateral view of the dentition of the Boar (Sus scrofa), 
the Wild Boar the roots of the teeth being exposed by removing the external lamina 
of Europe, Asia ie 
Minor, and North Africa, once common throughout the British 
Isles ; S. sennaurensis, North-East Africa; S. cristatus, India; 8. 
Fic. 104.—Left lateral view of the skull of Sus longirostris. } natural size. (From Nehring.) 
vittatus, Java, Borneo, Amboyna, Batchian ; %. pupuensis, New 
Guinea; S. timorensis, Timor and Rotti; S. andamanensis, Anda- 
